User:Samuel Adrian Antz/Drafts

"Transition Dreams"
Short story by Greg Egan
Country	Australia
Language	English
Genre(s)	Science fiction
Publication
Published in	Interzone
Publication type	Periodical
Publisher	TTA Press
Media type	Print
Publication date	October 1993

"Transition Dreams" is a science-fiction short story by Australian writer Greg Egan, first published in Interzone #76 in October 1993. The short story was included in the collections Our Lady of Chernobyl in 1995 and Luminous in 1998. The short story is set in the same universe as Egan's novel Diaspora.

Plot

The protagonist pays the Gleisner corporation to scan his consciousness and transfer it in a Gleisner robot. Caroline Bausch tells him about a side effect called transition dream, which will be experienced by his consciousness during the scanning process but forgotten again. The protagonist is confused about the unnecessary information, but Caroline Bausch argues that to determine how a consciousness experiences a phenomenon, it has to be created and do so in the process. The protagonist later learns that the transition dreams are actually experienced by the packages of data of a consciousness saved and deleted again on different servers while sending it to another place. When learning that the transaction to the Gleisner corporation for the process has never really been made, the protagonist realizes to be in a transition dream and therefore the necessity to soon greet death.

Translation

The short story was translated into French by Sylvie Denis and Francis Valéry (1996 & 2007), Italian (2001), Japanese by Makoto Yamagishi (2003), Spanish by Carlos Pavón (2010). Czech by Petr Kotrle (2011), Chinese (2022) and Korean by Kim Sang-hoon (2024).

Themes

The main concept of the short story is the process of scanning consciousness and create a digital version of a brain. Egan's other works also deal with this from different perspectives. This prominently includes the short story "Learning to Be Me", in which the main character is faced with an identity crisis caused by the technology, the novel Permutation City, which explores the metaphysics behind it on a very fundamental level (also including the separation of consciousness on different servers), and the novel Diaspora, in which humanity has already lived with scanning and in Gleisner robots for nine hundred years. In an interview with Carlos Pavón for The Way Things Are in 1998, Egan argued against the concern about the latter (which is set in the same universe as "Transition Dreams") not "going into all the philosophical issues of copying personalities", that "after exploring those issues in so many other things I’ve written, there comes a point where both for me, and for people who’ve read the other books and stories, there’s nothing to be gained by going over the same old ground." In an interview with Marisa O’Keeffe for noise!, Egan stated to be "fairly sure that there’ll be software in my lifetime that’s conscious, though how it will first arise I don’t know" and to be worried "that we might produce conscious software before we know it, and put the software through a lot of suffering without even realising it."

Reception

Jonathan Cowie, writing on concatenation.org, states that "this story has Philip Dick elements but unlike any Dick story I have read its elements did not seem to quite fit."

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database

"Induction"
Short story by Greg Egan
Country	Australia
Language	English
Genre(s)	Science fiction
Publication
Published in	Foundation 100
Media type	Print
Publication date	Mid 2007

"Induction" is a science-fiction short story by Australian writer Greg Egan, first published in Foundation 100 edited by Farah Mendlesohn and Graham Sleight in 2007. The short story was included in the collections Crystal Nights and Other Stories and Oceanic in 2009. It also appeared in the anthology Year's Best SF 13 edited by David G. Hartwell and Kathryn Cramer in 2008.

Plot

Ikat has worked for three years on the technology for interstellar travel. Together with his friend Qing, they witness the first launch from the Moon precisely on midnight of the first New Year's Eve of the 22th century and later decide to go on an interstellar journey themselves. Their bodies are frozen and their brains taken out to be scanned for the information to be sent twenty light-years away using laser pulses. Ikat and Qing wake up on the planet Duty orbiting around the double-star Prosperity. Both feel fulfilment and begin to wonder about what to strive towards now, before they speak a toast for all generations to always start something they won't finish.

Translation

The short story was translated into Russian (2008), Japanese by Makoto Yamagishi (2011), Czech by Petr Kotrle (2011) and Chinese (2024). The Russian translation appeared in Esli in December 2008 and the Czech translation appeared in XB-1 in August 2011. The Chinese translation appeared in a translation of the whole collection Oceanic.

Themes

The main concept of the short story is the process of transmitting consciousness with the speed of light. Egan's other works also deal with this from different perspectives. This prominently includes the short story "The Planck Dive", in which digital copies are sent into a black hole as explorers, and the novel Schild's Ladder, in which humanity has colonized thousands of systems and travels in-between them by transmitting their consciousness.

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database

"The Moat"
Short story by Greg Egan
Country	Australia
Language	English
Genre(s)	Science fiction
Publication
Published in	Aurealis
Publication type	Periodical
Media type	Print
Publication date	March 1991

"The Moat" is a science-fiction short story by Australian writer Greg Egan, first published in Aurealis #3 in March 1991. The short story was included in the anthology The Year’s Best Science Fiction: Ninth Annual Collection edited by Gardner Dozois in 1992 and the collection Axiomatic in 1995.

Plot

With an ever rising number of refugees arriving in Australia, the overall opinion continues to change into keeping them out and a new bill is proposed. Rachel, a pathologist whose husband works as a lawyer for refugees, investigates a crime scene involving rape and finds out that the sperm samples collected are found to be invisible to genetic testing. It turns out that the DNA and RNA of the rapist were altered to contain more than the primary nucleobases (adenine, cytosine, guanine, thymine, and uracil), which also grants full immunity against viruses. Rachel later reflects about how often humans separate themselves into "us" and "them". Although the bill is ultimately rejected, Rachel is aware that whoever responsible for the genetic alternation can target all other humans biologically, so that only the desired group of humans survives.

Translation

The short story was translated into Czech by Václav Mikolášek, Romanian by Florin Pîtea (1993), Italian by Riccardo Valla (2003), Spanish (2006), French by Francis Lustman & Quarante-Deux (2006), Japanese by Makoto Yamagishi (2008) and Chinese.

Background

Later in the 2000s, Egan was active in campaigning for refugee rights, including the end of mandatory detention for asylum seekers in Australia, for a few years. In an interview with David Conyers for Virtual Worlds and Imagined Futures in 2009, Egan called it an "eye-opening experience to see people mistreated in that way" and later picked up the premise again in "Lost Continent", which he called "an allegory of the whole thing, just to get some of the anger out of my system and move on." Egan further wrote about his experience and personal connections made with refugees in The Razor Wire Looking Glass in November 2003, an essay finished after his fifth journey to the immigration detention centre in Port Hedland:

Of eight Afghanis I know who’ve gone back, unable to bear detention any longer, six found the situation so perilous that they had to flee again. People returning to other countries have been arrested at the airport and imprisoned without charge or trial. In at least three cases documented by church groups, rejected asylum seekers returning from Australia have been murdered. That’s the choice we’re offering people: be delivered into the hands of your enemy, or stay here and rot in prison. [....] At the less subtle end of the spectrum, I know an Afghani man who was told, “Yes, the Taliban killed your father and your brother, so your father and your brother would have deserved visas, but you’re safe here in front of me now, so how can you say you were in danger?” It’s hard to imagine a more brutal catch-22. I also know people who’ve been told, “Your life would be in danger if you returned, but not for a reason covered by the refugee convention, so we don’t owe you any kind of protection.”

Reception

James Nicoll wrote in a review of The Year’s Best Science Fiction: Ninth Annual Collection, that the "medical mystery’s solution has deeply disquieting implications, particularly in the context of a society embracing virulent xenophobia" and claimed to have "particular interest" in the short story, which furthermore could be called a "mirror image" to "Eyewall" by Rick Shelley also contained in the anthology.

technovelgy.com calls it an "excellent short story about the ways that people are trying to distance themselves from others in our increasingly small planet."

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database

Hilbert–Lie group

In mathematics, a Hilbert-Lie group is a Hilbert manifold with a compatible group structure, similar to how a Lie group is a smooth manifold with a compatible group structure. Unlike the latter, Hilbert-Lie groups can have infinite dimensions and hence provide a suitable formalism to generalize methods from differential topology for application in functional analysis. Hilbert-Lie groups are named after the German mathematician David Hilbert and the Norwegian mathematician Sophus Lie.

See also

• Banach–Lie group
• Fréchet–Lie group

External links

• Hilbert Lie group on nLab

Hilbert–Lie algebra

In mathematics, a Hilbert–Lie algebra is a Hilbert space equipped with a compatible Lie bracket. Analogous to a Lie algebra being the tangent space of a Lie group, a Hilbert–Lie algebra is the tangent space of a Hilbert–Lie group. Hilbert-Lie algebras are named after the German mathematician David Hilbert and the Norwegian mathematician Sophus Lie.

See also

• Banach–Lie algebra
• Fréchet–Lie algebra

External links

• Hilbert Lie algebra on nLab

Banach–Lie group

In mathematics, a Banach-Lie group is a Banach manifold with a compatible group structure, similar to how a Lie group is a smooth manifold with a compatible group structure. Unlike the latter, Banach-Lie groups can have infinite dimensions and hence provide a suitable formalism to generalize methods from differential topology for application in functional analysis. Banach-Lie groups are named after the Polish mathematician Stefan Banach and the Norwegian mathematician Sophus Lie.

See also

• Fréchet–Lie group
• Hilbert–Lie group

External links

• Banach Lie group on nLab

Banach–Lie algebra

In mathematics, a Banach–Lie algebra is a Banach space equipped with a compatible Lie bracket. Analogous to a Lie algebra being the tangent space of a Lie group, a Banach–Lie algebra is the tangent space of a Banach–Lie group. Banach-Lie algebras are named after the Polish mathematician Stefan Banach and the Norwegian mathematician Sophus Lie.

See also

• Hilbert–Lie algebra
• Fréchet–Lie algebra

External links

• Banach Lie algebra on nLab

Fréchet–Lie group

In mathematics, a Fréchet-Lie group is a Fréchet manifold with a compatible group structure, similar to how a Lie group is a smooth manifold with a compatible group structure. Unlike the latter, Fréchet-Lie groups can have infinite dimensions and hence provide a suitable formalism to generalize methods from differential topology for application in functional analysis. Fréchet-Lie groups are named after the French mathematician Réne Maurice Fréchet and the Norwegian mathematician Sophus Lie.

See also

• Banach–Lie group
• Hilbert–Lie group

External links

• Fréchet Lie group on nLab

Fréchet–Lie algebra

In mathematics, a Fréchet–Lie algebra is a Fréchet space equipped with a compatible Lie bracket. Analogous to a Lie algebra being the tangent space of a Lie group, a Fréchet–Lie algebra is the tangent space of a Fréchet–Lie group. Fréchet-Lie algebras are named after the French mathematician Réne Maurice Fréchet and the Norwegian mathematician Sophus Lie.

See also

• Hilbert–Lie algebra
• Fréchet–Lie algebra

External links

• Fréchet Lie algebra on nLab

Two-dimensional Yang-Mills theory

• Gerard ’t Hooft (1974), "A Two-Dimensional Model For Mesons", Nucl. Phys. B, vol. 75, pp. 461–470, doi:10.1016/0550-3213(74)90088-1
• Dana S. Fine (1990), "Quantum Yang-Mills on the two-sphere", Communications in Mathematical Physics, vol. 134, pp. 273–292, doi:10.1007/BF02097703
• Dana S. Fine (1991), "Quantum Yang-Mills on a Riemann surface", Communications in Mathematical Physics, vol. 140, pp. 321–338, doi:10.1007/BF02099502
• Ambar Sengupta (1992), "The Yang-Mills measure for S2", Journal of Functional Analysis, vol. 108, no. 2, pp. 231–273, doi:10.1016/0022-1236(92)90025-E
• Ambar Sengupta (1993), "Quantum Gauge Theory on Compact Surfaces", Annals of Physics, vol. 221, no. 1, pp. 17–52, doi:10.1006/aphy.1993.1002

Four-dimensional Yang-Mills theory

In mathematical physics, four-dimensional Yang–Mills theory is the special case of Yang–Mills theory in which the dimension of spacetime is taken to be four. This special case allows for the Yang-Mills equations in second order to be reduced to the simpler (anti) self-dual Yang-Mills equations in first order.

External links

• self-dual Yang-Mills theory on nLab

Rational homotopy sphere

In algebraic topology, a rational homotopy $n$-sphere is an $n$-dimensional manifold with the same rational homotopy groups as the $n$-sphere. These serve, among other things, to understand which information the rational homotopy groups of a space can or cannot measure and which attenuations result from neglecting torsion in comparison to the (integral) homotopy groups of the space.

Definition

A rational homotopy $n$-sphere is an $n$-dimensional manifold $\Sigma$ with the same rational homotopy groups as the $n$-sphere $S^{n}$:

$\pi _{k}(\Sigma )\otimes \mathbb {Q} =\pi _{k}(S^{n})\otimes \mathbb {Q} \cong {\begin{cases}\mathbb {Z} &;k=n{\text{ if }}n{\text{ even}}\\\mathbb {Z} &;k=n,2n-1{\text{ if }}n{\text{ odd}}\\1&;{\text{otherwise}}\end{cases}}.$

Properties

• Every (integral) homotopy sphere is a rational homotopy sphere.

Examples

• The $n$-sphere $S^{n}$ itself is obviously a rational homotopy $n$-sphere.
• The Poincaré homology sphere is a rational homology $3$-sphere in particular.
• The real projective space $\mathbb {R} P^{n}$ is a rational homotopy sphere for all $n>0$. The fiber bundle $S^{0}\rightarrow S^{n}\rightarrow \mathbb {R} P^{n}$ yields with the long exact sequence of homotopy groups that $\pi _{k}(\mathbb {R} P^{n})\cong \pi _{k}(S^{n})$ for $k>1$ and $n>0$ as well as $\pi _{1}(\mathbb {R} P^{1})=\mathbb {Z}$ and $\pi _{1}(\mathbb {R} P^{n})=\mathbb {Z} _{2}$ for $n>1$, which vanishes after rationalization. $\mathbb {R} P^{1}\cong S^{1}$ is the sphere in particular.

See also

• Rational homology sphere

Literatur

• Hatcher, Allen (2002), Algebraic Topology, Cambridge University Press, ISBN 0-521-79540-0

External links

• rational homotopy sphere on nLab

Rational homology sphere

In algebraic topology, a rational homology $n$-sphere is an $n$-dimensional manifold with the same rational homology groups as the $n$-sphere. These serve, among other things, to understand which information the rational homology groups of a space can or cannot measure and which attenuations result from neglecting torsion in comparison to the (integral) homology groups of the space.

Definition

A rational homology $n$-sphere is an $n$-dimensional manifold $\Sigma$ with the same rational homology groups as the $n$-sphere $S^{n}$:

$H_{k}(\Sigma ,\mathbb {Q} )=H_{k}(S^{n},\mathbb {Q} )\cong {\begin{cases}\mathbb {Z} &;k=0{\text{ or }}k=n\\1&;{\text{otherwise}}\end{cases}}.$

Properties

• Every (integral) homology sphere is a rational homology sphere.
• Every simply connected rational homology $n$-sphere with $n\leq 4$ is homeomorphic to the $n$-sphere.

Examples

• The $n$-sphere $S^{n}$ itself is obviously a rational homology $n$-sphere.
• The pseudocircle (for which a weak homotopy equivalence from the circle exists) is a rational homotopy $1$-sphere, which is not a homotopy $1$-sphere.
• The Klein bottle has two dimensions, but has the same rational homology as the $1$-sphere as its (integral) homology groups are given by:

  $H_{0}(K)\cong \mathbb {Z}$

  $H_{1}(K)\cong \mathbb {Z} \oplus \mathbb {Z} _{2}$

  $H_{2}(K)\cong 1$

Hence it is not a rational homology sphere, but would be if the requirement to be of same dimension was dropped.

• The real projective space $\mathbb {R} P^{n}$ is a rational homology sphere for $n$ odd as its (integral) homology groups are given by:

  $H_{k}(\mathbb {R} P^{n})\cong {\begin{cases}\mathbb {Z} &;k=0{\text{ or }}k=n{\text{ if odd}}\\\mathbb {Z} _{2}&;k{\text{ odd}},0<k<n\\1&;{\text{otherwise}}\end{cases}}.$

$\mathbb {R} P^{1}\cong S^{1}$ is the sphere in particular.

• The five-dimensional Wu manifold $W=\operatorname {SU} (3)/\operatorname {SO} (3)$ is a simply connected rational homology sphere (with non-trivial homology groups $H_{0}(W)\cong \mathbb {Z}$, $H_{2}(W)\cong \mathbb {Z} _{2}$ und $H_{5}(W)\cong \mathbb {Z}$), which is not a homotopy sphere.

See also

• Rational homotopy sphere

Literature

• Hatcher, Allen (2002), Algebraic Topology, Cambridge University Press, ISBN 0-521-79540-0

External links

• rational homology sphere on nLab

The Infinite Assassin

"The Infinite Assassin"
Short story by Greg Egan
Country	Australia
Language	English
Genre(s)	Science fiction
Publication
Published in	Interzone
Publication type	Periodical
Publisher	TTA Press
Media type	Print
Publication date	June 1991

"The Infinite Assassin" is a science-fiction short story by Australian writer Greg Egan, first published in Interzone #48 in June 1991. The short story was included in the collection Axiomatic in 1995.

Plot

In a

Translation

The short story was translated into French (2000), Japanese (2000), Spanish (2001 and 2006) and Italian (2003).

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database

Seeing

"Seeing"
Short story by Greg Egan
Country	Australia
Language	English
Genre(s)	Science fiction
Publication
Published in	Interzone
Publication type	Periodical
Publisher	TTA Press
Media type	Print
Publication date	July 1990

"Seeing" is a science-fiction short story by Australian writer Greg Egan,

Plot

XXXX is driven into hospital after a gun shot injured his brain. He suddenly sees his own body from above in a strange Out-of-body experience and has to adapt to this new view of the world.

Translation

The short story was translated into Italian (2003), Spanish (2006), French (2006) and Japanese (2008).

Review

Karen Burnham writes in Greg Egan (Masters of Modern Science Fiction), that the short story "reads rather like an Oliver Sacks case study" and that "Egan is working in territory that has also been profitably explored by SF writers such as Daryl Gregory and Peter Watts".

Literature

• Burnham, Karen (2014). Greg Egan (Modern Masters of Science Fiction). Modern Masters of Science Fiction. University of Illinois Press (published 2014-04-03). ISBN 978-0252038419.

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database

Hot Rock

"Hot Rock" is a science-fiction short story by Australian writer Greg Egan, first published in XXXX. The novella is set in the same universe as the novelette "Glory", the novella "Riding the Crocodile" and the novel Incandescence.

Plot

Azar uses the communication network of the alien civilization known as Amalgam to send her consciousness over thousand five hundred light-years to the space station Mologhat. It orbits around the planemo Tallulah drifting through interstellar space without a star. Azar meets Shelma and together they land on Tallulah, determined to find out the reason behind its unusually high temperature. They create bodies resembling the alien lizard-like creatures living in the ocean and reveal themselves as visitors to them.

Translation

The short story was translated into Korean and Chinese.

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database

Closer

"Closer"
Short story by Greg Egan
Country	Australia
Language	English
Genre(s)	Science fiction
Publication
Published in	Eidolon
Publication date	Winter 1992

"Closer" is a science-fiction short story by Australian writer Greg Egan, first published in Eidolon #9 in Winter 1992. The short story was included in the collection Axiomatic in 1995.

Plot

XXXX and Sian

Translation

The short story was translated into Italian (2003), Spanish (2006), French (2006), Japanese (2006) and Portugese (2011).

Background

The Ndoli Device/jewel also appears in the short stories "Learning to Be Me" (1990) and "Border Guards" (1999) by Greg Egan.

Reception

Russell Letson, writing in the Locus Magazine, states that "Egan does not shrink from looking into any abyss, whether the topic is the authenticity of subjectivity or the genuineness of the most intimate relationships."

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database

Break my Fall

"Break my Fall" is a science-fiction short story by Australian writer Greg Egan, first published XXXX. External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database

Seventh Sight

"Seventh Sight"
Short story by Greg Egan
Country	Australia
Language	English
Genre(s)	Science fiction
Publication
Published in	Interzone
Publication type	Periodical
Publisher	TTA Press
Media type	Print
Publication date	July 1990

"Seventh Sight" is a science-fiction short story by Australian writer Greg Egan, first published XXXX. The short story was included in the collection Instantiation in 2020.

Plot

Background

The short story was nominated for the Japanese Seiun Award in 2017. It reached the 31st place in the Reader Poll of the Locus Award in 2015.

Reception

Publishers Weekly writes, that the short story is "unexpectedly gorgeous and humanistic."

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database

==References==

{{reflist}}

{{DEFAULTSORT:Seventh Sight}}

[[Category:Australian science fiction short stories]]

[[Category:2014 short stories]]

[[Category:Short stories by Greg Egan]]

Uncanny Valley

"Uncanny Valley"
Short story by Greg Egan
Country	Australia
Language	English
Genre(s)	Science fiction
Publication
Published in	Interzone
Publication type	Periodical
Publisher	TTA Press
Media type	Print
Publication date	July 1990

"Uncanny Valley" is a science-fiction short story by Australian writer Greg Egan, first published XXXX. The short story was included in the The Best of Greg Egan in 2019 and Instantiation in 2020.

Plot

XXXX

Background

The short story was nominated for the British SF Association Award in 2018 and won the Japanese Seiun Award in 2020.

Reception

Salik Shah, writing in the Reactor Magazine, takes from the short story that "Egan is vocal about the rights of 'sentient' software or AI."

Russell Letson, writing in the Locus Magazine, states that the short story "pairs the imposter/authenticity motif with the issue of the legal personhood of artificial minds in a day-after-tomorrow near-future."

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database
• Uncanny Valley (full text on tor.com)

==References==

{{reflist}}

{{DEFAULTSORT:Uncanny Valley}}

[[Category:Australian science fiction short stories]]

[[Category:2017 short stories]]

[[Category:Short stories by Greg Egan]]

Bit Players

"Bit Players"
Short story by Greg Egan
Country	Australia
Language	English
Genre(s)	Science fiction
Publication
Published in	Interzone
Publication type	Periodical
Publisher	TTA Press
Media type	Print
Publication date	July 1990

"Bit Players" is a science-fiction short story by Australian writer Greg Egan, first published XXXX. The short story was included in the collections The Best of Greg Egan in 2019 and Instantiation in 2020.

Plot

XXXX

Background

The short story was nominated for the Japanese Seiun Award in 2020.

Reception

Russell Letson, writing in the Locus Magazine, claims that the short stories "Bit Players", "3-adica", and "Instantiation" all "outline the technical-legal problems of AI personhood as artificial personalities try to escape the virtual-reality game worlds that they have been programmed into." For "Bit Players", he adds that "is so sloppily worked out that newly generated character Sagreda intuitively knows that the physics can’t be consistent."

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database
• Bit Players (full text on Egan's website)
• Vedlejší postavy (Czech translation)

==References==

{{reflist}}

{{DEFAULTSORT:Bit Players}}

[[Category:Australian science fiction short stories]]

[[Category:2013 short stories]]

[[Category:Short stories by Greg Egan]]

3-adica

Russell Letson, writing in the Locus Magazine, claims that the short stories "Bit Players", "3-adica", and "Instantiation" all "outline the technical-legal problems of AI personhood as artificial personalities try to escape the virtual-reality game worlds that they have been programmed into." For "3-adica", he adds that it contains "a game employing a topology based on an exotic number theory", which he "still can’t quite follow, though the bit players do, to their eventual benefit."

Instantanion

Russell Letson, writing in the Locus Magazine, claims that the short stories "Bit Players", "3-adica", and "Instantiation" all "outline the technical-legal problems of AI personhood as artificial personalities try to escape the virtual-reality game worlds that they have been programmed into."

This is Not the Way Home

"This Is Not The Way Home"
Short story by Greg Egan
Country	Australia
Language	English
Genre(s)	Science fiction
Publication
Published in	Interzone
Publication type	Periodical
Publisher	TTA Press
Media type	Print
Publication date	July 1990

"This is Not the Way Home" is a science-fiction short story by Australian writer Greg Egan, first published XXXX.

Plot

Background

The short story was nominated for the Japanese Seiun Award in 2021.

Reception

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database

==References==

{{reflist}}

{{DEFAULTSORT:This is Not the Way Home}}

[[Category:Australian science fiction short stories]]

[[Category:2019 short stories]]

[[Category:Short stories by Greg Egan]]

(Axiomatic collection)

The anthology won the spanish Xatafi-Cyberdark Award in 2007. It reached the 6th and then the 3rd place in the Reader Poll of the Locus Award in 1996 and in 1998.

Cocoon

"Cocoon"
Short story by Greg Egan
Country	Australia
Language	English
Genre(s)	Science fiction
Publication
Published in	Interzone
Publication type	Periodical
Publisher	TTA Press
Media type	Print
Publication date	July 1990

"Cocoon" is a science-fiction short story by Australian writer Greg Egan, first published XXXX. The short story was included in the collection Luminous in 1998.

Plot

Translation

The short story was translated into Japanese, French, Greek, Spanish, Czech and Korean.

Reception

Reviews

Karen Burnham writes in Greg Egan (Masters of Science Fiction), that the short story is "a straightforward bioethics story" and that it "develops its different arguments and illustrates the politicized nature of all such questions very effectively."

Awards

The short story won a Ditmar Award in 1995. It was nominated for the Hugo Award in 1995 and for the Japanese Seiun Award in 1997. It was shortlisted for the Otherwise Award (formerly James Tiptree Jr Memorial Award) and the Theodore Sturgeon Memorial Award both in 1995. It reached the 4th place in the Reader Poll of the Locus Award in 1995 and won Asimov's Reader Poll.

Literature

• Burnham, Karen (2014). Greg Egan (Modern Masters of Science Fiction). Modern Masters of Science Fiction. University of Illinois Press (published 2014-04-03). ISBN 978-0252038419.

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database

==References==

{{reflist}}

{{DEFAULTSORT:Cocoon}}

[[Category:Australian science fiction short stories]]

[[Category:1994 short stories]]

[[Category:Short stories by Greg Egan]]

Dust

"Dust"
Short story by Greg Egan
Country	Australia
Language	English
Genre(s)	Science fiction
Publication
Published in	Interzone
Publication type	Periodical
Publisher	TTA Press
Media type	Print
Publication date	July 1990

"Dust" is a science-fiction short story by Australian writer Greg Egan, first published in Asimov's Science Fiction in July 1992. The short story was later included in Egan's novel Permutation City.

Plot

Background

Reception

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database

==References==

{{reflist}}

{{DEFAULTSORT:Dust}}

[[Category:Australian science fiction short stories]]

[[Category:1992 short stories]]

[[Category:Short stories by Greg Egan]]

Oracle

"Oracle"
Short story by Greg Egan
Country	Australia
Language	English
Genre(s)	Science fiction
Publication
Published in	Asimov's Science Fiction
Publication type	Periodical
Media type	Print
Publication date	July 2000

"Oracle" is a science-fiction short story by Australian writer Greg Egan, first published in Asimov's Science Fiction in July 2000. The short story was included in the collections Oceanic in 2009 and The Best of Greg Egan in 2019. The short story is set in the same universe as Egan's short story Singleton and Egan's novel Schild's Ladder.

Plot

Robert Stoney, an alternative version of Alan Turing, publishes a paper about a four-dimensional Yang-Mills theory of gravity. Following this, an unknown woman called Helen approaches and reveals to him to have come from an alternative branch of history and to have used the anti self-dual and self-dual solutions of the theory to travel forward and backward in time. Robert realized that Helen is a machine and learns advanced knowledge from her. This is noticed by his colleague John Hamilton, an alternative version of XXXX, who then challenges him to a public discussion about whether machines can think. John argues against it using Gödel's incompleteness theorem and also explains the Halting problem to show that an oracle cannot exist. Helen claims as a machine to be an oracle due to her ability to travel through time.

Translation

The short story was translated into Polish, Spanish, Japanese by Makoto Yamagishi, French and Chinese (2024).

Reception

Publishers Weekly writes about the short story, that "Egan can be heavy-handed at times" and that "the character Jack serves as a straw-man version of C.S. Lewis" as well as that "Egan’s talent for creating well-drawn characters shines."

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database
• Oracle (full text on Egan's website)

==References==

{{reflist}}

{{DEFAULTSORT:Oracle}}

[[Category:Australian science fiction short stories]]

[[Category:2002 short stories]]

[[Category:Short stories by Greg Egan]]

Sleep and the Soul (short story)

Reviews

Russell Letson writes in the Locus Magazine, that the short story is "an intriguing piece presented as an alternate history where the Jonbar point is a biological change, not a historical one." He adds that "Egan’s logical working out of the consequences of his central idea is fascinating, and the story is involving."

The Slipway

"The Slipway" is a science-fiction short story by Australian writer Greg Egan, first published in XXXX.

Plot

With the hint of a farmer, who has already discovered an asteroid, Fatima and Gabrielle discover new stars in the night sky, which turn out to come from a wormhole, called the Pane. Theories of alien intergalactic transport networks or a proof of string theory spread across the world, but all measurements of size, position and velocity of the Pane fail. After the Pane has reached twice the size of the full moon, Fatima proposes that the Pane is actually as large as the Solar System and travels close to the speed of light, hence the Solar System has already passend it and the night sky is only an illusion created by the light traveling from the past with them. Her hypothesis is at first rejected and she showered with rape and death threats, but the Pane continues to grow, desperate plans to send out spaceships and space probes back are made. Gabrielle eventually realizes that the other side of the Pane is again their original position and that it showed them an 67.000 year of snapshot of the night sky within. Fatima and Gabrielle immediatly go back to their observation of the phenomenon, to find it again, if it's natural, or create it themselves one day, if it's artificial.

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database

Our Lady of Chernobyl (collection)

Our Lady of Chernobyl

Author	Greg Egan
Language	English
Genre	Science fiction, Hard science fiction
Publication date	1995
ISBN	0-646-23230-4

Our Lady of Chernobyl is a collection of four science-fiction short stories by Australian writer Greg Egan, published in 1995.

Contents

• Chaff (1993)
• Beyond the Whistle Test (1989)
• Transition Dreams (1993)
• Our Lady of Chernobyl (1994)

Reception

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database

Dispersion

Dispersion is a science fiction novella by Australian writer Greg Egan, XXXX.

Plot

Reception

Russell Letson writes in the Locus Magazine, that the story "combines motifs from all over Egan territory: the social-ethical drama of people under extreme stress of 'Perihelion Summer' and 'The Four Thousand, the Eight Hundred'; the diseases of Distress, 'Silver Fire', and 'Reasons to Be Cheerful'; and the gnarlier physics-and-math exertions of Schild’s Ladder or Incandescence or the 'Luminous'/'Dark Integers' duo." It "is a cousin to Edwin Abbot’s [sic.] Flatland, on steroids laced with LSD" since the "exotic cosmology is overlaid onto a nearly allegorical portrait of communities occupying overlapping but immiscible spaces, facing the same crisis but failing to come together to deal with." He adds to "return to Egan for" the theme "to know and then to do the right thing; to be effective and moral, no matter the difficulty or discomfort."

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database

Phoresis

Phoresis is a science fiction novella by Australian writer Greg Egan, XXXX.

Plot

Reception

Russel Letson writes in the Locus Magazine, that the characters "are gregarious, curious, imaginative, methodical, ingenious, and persistent" as well as that the novella is "intensely procedural" and that "the speculative-engineering side of the novel almost evades the feeling of fiction." He further writes that "drama arises from the social setting" and that "execution demands both vision and sacrifice on the part of those who will not see the work’s end", which makes the novella "strongly reminiscent of Incandescence and 'The Four Thousand, the Eight Hundred'." It is "is the Tower of Babel, but without the hubris and confusion: a parable not of division and failure but of the triumph of ingenuity and selflessness – of hope."

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database

The Four Thousand, the Eight Hundred

The Four Thousand, the Eight Hundred is a science fiction novella by Australian writer Greg Egan, XXXX.

Reception

Publishers Weekly writes that the short story "successfully incorporates hot-button issues of intellectual property rights and government reparations for systematic bigotry into a far-future SF story" and is a "top-notch thought-provoking and suspenseful space opera, with impressively effective worldbuilding given its short length."

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database

Arnold–Kuiper–Massey theorem

The Arnold–Kuiper–Massey theorem (or AKM theorem) includes three connected results in the mathematical area of projective geometry about projective planes and their connection to spheres.

Complex AKM theorem

The first orthogonal group O(1) acts on the complex projective space CP^n by complex conjugation.

Quaternionic AKM theorem

Octonionic AKM theorem

External links

• Arnold–Kuiper–Massey theorem on nLab

The Wandering Earth 3

Background

Some Fans jokingly refer to the movie as "The Wandering Ear" (流浪耳朵). This is because the official poster for the second movie transformed the last "H" of the english title into the roman numeral "II" and hence some non-offical posters for the third movie transformed the "TH" into "III", which reduces "EARTH" to "EAR". But it is expected that the official poster will instead transform the "E" into the chinese number "三" to also reference Liu Cixin's The Three-Body Problem (三体).

Hold Up The Sky

The Time Migration

published under the original title 时间移民 (Pinyin shíjiān yímín)

2018-04-01

Fire in the Earth

published under the original title 地火 (Pinyin de huǒ)

Contraction

Mirror

published under the original title 镜子 (Pinyin jìngzi)

Ode to Joy

published under the original title XXXX

Full-Spectrum Barrage Jamming

published under the original title 全频带阻塞干扰 (Pinyin quán píndài zǔsè gānrǎo)

Sea of Dreams

published under the original title 梦之海 (Pinyin mèng zhī hǎi)

Cloud of Poems

published under the original title XXXX

After the events of Devourer, it returned to Earth and helped make it hollow to rebuild a world for humanity within. The sun in the center is actually a white hole transporting the light from its corresponding black hole orbiting around another star. Artificial gravity is generated by a faster rotation of Earth, so there is none at the poles. The human Yiyi, the dinosaur Bigtooth and an alien clone of the Chinese poetrist Li Bai are headed to the South Pole to leave the Earth and see the Cloud of Poems. Previously the dinosaurs have made contact with a godlike alien civilization, who look down on literature due to their advanced technology. One of the gods talked with Yiyi and Bigtooth and cloned Li Bai to transfer his conciousness into him to demonstrate this opinion. After Yiyi still disagrees, because it is impossible for an alien to feel and think like a human does, Li Bai then wants to transform the entire Solar System into a storage space and write every poem possible to surely surpass his original version. A fleet of his civilization arrives and also destroys the Devourer with only a few dinosaurs fleeing to Earth. Afterwards the nebula is created, which Yiyi, Bigtooth and Li Bai can see after leaving Earth. Yiyi is now amazed by the technology while Li Bai came to enjoy the poems created, even telling about one concerning his friend Yiyi finding love.

The Thinker

published under the original title 思想者 (Pinyin sīxiǎng zhě)

Invisible Planets

Invisible Planets is a science-fiction anthology composed of thirteen short stories as well as three essays by different Chinese writers, including Chen Qiufan, Xia Jia, Ma Boyong, Hao Jingfang, Tang Fei, Cheng Jingbo and Liu Cixin.

Contents

• "The Year of the Rat" by Chen Qiufan
• "The Fish of Liliang" by Chen Qiufan
• "The Flower of Shazui" by Chen Qiufan
• "A Hundred Ghosts Parade Tonight" by Xia Jia
• "Tontong's Summer" by Xia Jia
• "Night Journey of the Dragon-House" by Xia Jia
• "The City of Silence" by Ma Boyong
• "Invisible Planets" by Hao Jingfang
• "Folding Beijing" by Hao Jingfang
• "Call Girl" by Tang Fei
• "Grave of the Fireflies" by Cheng Jingbo
• "The Circle" by Liu Cixin
• "Taking Care of God" by Liu Cixin

Sinopticon

Sinopticon is a science-fiction anthology composed of thirteen short stories as well as three essays by different Chinese writers, including Gu Shi, Han Song, Hao Jingfang, Nian Yu, Wang Jinkang, Zhao Haihong, Tang Fei, Ma Boyong, Anna Wu, A Que, Baoshu, Regina Kanyu Wang and Jiang Bo.

Contents

• "The Last Save" by Gu Shi
• "Tombs of the Universe" by Han Song
• "Qiankun and Alex" by Hao Jingfang
• "Cat's Chance in Hell" by Nian Yu
• "The Return of Adam" by Wang Jinkang
• "Rendevous: 1937" by Zhao Haihong
• "The Heart of the Museum" by Tang Fei
• "The Great Migration" by Ma Boyong
• "Meisje met de Parel" by Anna Wu
• "Flower of the Other Shore" by A Que
• "The Absolute Experiment" by Baoshu
• "The Tide of Moon City" by Regina Kanyu Wang
• "Starship: Libary" by Jiang Bo

Reviews

Publishers Weekly wrote, that "Xueting showcases the depth and breadth of Chinese sci-fi [...] in this superior anthology that demonstrates the deep well of talent to be found beyond big names such as Liu Cixin." Its short stories "couch universal themes of the genre [...] in elements unique to Chinese identity, culture, and history." Although "every entry is high-quality", Han Song's "Tombs of the Universe" and Gu Shi's "The Last Save" are "among the most memorable." Furthermore, Xueting's "concise but detailed introduction and thoughtful story notes provide helpful context." In summary, the "masterful result validates Xueting’s endeavor—and will only whet readers’ appetite for more translations."

Shannon Fay wrote on Strange Horizons, that Xueting "does a good job [...] of preserving the tone and style of each author, and extols their talents (or in some cases, defends their foibles) in an afterword that follows each story", which is important for the chinese background, because "while there might be stories here featuring familiar motifs, there are also stories that touch on themes you wouldn’t usually see in an anthology full of Western writers." Concerning the short stories, "nearly every story here has something unique to offer" and even though "not all of the stories have a happy ending", "there’s a general feeling of goodwill that comes through."

Adam Robbins writes the The World of Chinese, that "each story builds a world of its own; indeed, each could justify a review of its own" and that "each author’s distinct voice shines through, dreamy or hard-boiled in their tone, minute or cosmic in their scope." In summary, "these well-chosen stories give a sense of the riches that await once other translators take up the challenge to bring more of the genre into English. Despite having their own distinct cultural tradition, China’s writers create worlds with concerns and technologies that should be relatable to any reader."

Hospital trilogy

Hospital (Chinese: 医院三部曲, Pinyin: yīyuàn sān bù qǔ) is a dystopian science-fiction trilogy by Chinese writer Han Song, composed of the novels Hospital, Exorcism and Dead Souls.

Novels

• Hospital: Published in Chinese on 1 Juni 2016. An english translation by Michael Berry was published on 28 November 2023.
• Exorcism: Published in Chinese in May 2017. An english translation by Michael Berry was published on 28 March 2023.
• Dead Souls: Published in Chinese in May 2018. An english translation by Michael Berry was published on 7 January 2025.

Translation

Michael Berry wrote about translating the Hospital trilogy in The Paris Review on 26 January 2024, claiming that "translating the trilogy has fully consumed, even haunted" him. He concludes that to think "of the trilogy as a dream, or a nightmare, taking place on a deep subconscious level; it is meant to be experienced more than intellectualized or analyzed."

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database

Exorcism (en)

Exorcism (Chinese: 驱魔, Pinyin: qūmó) is a dystopian science-fiction novel by Chinese writer Han Song and the second part of the Hospital trilogy (Chinese: 医院三部曲, Pinyin: yīyuàn sān bù qǔ).

Plot

Reception

Exorcism achieved an average rating of 7,1/10 on Douban.

External links

• Samuel Adrian Antz/Drafts title listing at the Internet Speculative Fiction Database
• Exorcism on Douban (Chinese)

Dead Souls

Dead Souls (Chinese: 亡灵, Pinyin: wánglíng) is a dystopian science-fiction novel by Chinese writer Han Song and the third part of the Hospital trilogy (Chinese: 医院三部曲, Pinyin: yīyuàn sān bù qǔ).

Plot

Reception

Dead Souls achieved an average rating of 8,1/10 on Douban.

External links

• Dead Souls on Douban (Chinese)

Llarull's theorem

In Riemannian geometry, Llarull's theorem states

The theorem is named after the mathematician Marcelo Llarull, who published it in Mathematische Annalen in 1998.

External links

• Llarull's theorem on nLab

Geroch conjecture

In Riemannian geometry, the Geroch conjecture states that metrics with positive scalar curvature on tori must be flat.

In two dimensions, where the Gaussian curvature $K$ equals the scalar curvature $\operatorname {scal}$, the Geroch conjecture is an immediate consequence of the Gauß-Bonnet theorem. Given a metric $g$ on the torus $T^{2}$, its vanishing Euler characterstic yields:

$\int _{T^{2}}K\mathrm {d} \operatorname {vol} _{g}=\int _{T^{2}}\operatorname {scal} _{g}\mathrm {d} \operatorname {vol} _{g}=4\pi \chi (T^{2})=0.$

External links

• Geroch conjecture on nLab

Min-Oo conjecture

In Riemannian geometry, the Min-Oo conjecture states that certain Riemannian manifolds must be isometric to the sphere of same dimension with the standard metric. The conjecture was proposed and named after Maung Min-Oo, who published a wrong proof for it in XXXX. The conjecture is correct in two dimensions, but was disproven by Simon Brendle, Fernando Marques and André Neves in 2010.

The Min-Oo conjecture states, that a compact Riemannian manifold

External links

• Min-Oo conjecture on nLab