Optimally stable multivariate bases

T Lyche, JM Peña - Advances in Computational Mathematics, 2004 - Springer
basis on [0,1], see [2,9]. In this paper we extend some of the univariate results on optimal
stability to the multivariate … on , we say that a basis b ∈ B is optimally stable for the evaluation of …

Polynomial bases on the numerical solution of the multivariate discrete moment problem

G Mádi-Nagy - Annals of Operations Research, 2012 - Springer
stable dual method for the solution. It is based on the knowledge of all dual feasible bases
under … Part 2 of the method enables us to compare the condition number of the “optimalbasis

A note on the optimal stability of bases of univariate functions

JM Peña - Numerische Mathematik, 2006 - Springer
… is optimal (see [6]). In [7], a characterization of optimally stable bases of spaces of univariate
… On the other hand, the optimal stability of some bases of spaces of multivariate functions …

Chemical equilibria studies using multivariate analysis methods

J Jaumot, R Eritja, R Gargallo - Analytical and bioanalytical chemistry, 2011 - Springer
… that is stable in slightly acidic solutions because the protonation of several cytosine bases
to … C and pure spectra S T matrices, optimally fitting the experimental data matrix D using the …

Convergence and near-optimal sampling for multivariate function approximations in irregular domains via vandermonde with arnoldi

W Zhu, Y Nakatsukasa - arXiv preprint arXiv:2301.12241, 2023 - arxiv.org
basis, it is well-known that the least-squares approximations can still become inaccurate when
the number of sample points M (from a suboptimal … We provide proof of the stability of the …

Multivariate approximation of functions on irregular domains by weighted least-squares methods

G Migliorati - IMA journal of numerical analysis, 2021 - academic.oup.com
… )$|-orthonormal basis is not available, stable and quasi-optimallybasis of |$V_n$|
orthonormal in a discrete sense. The computational cost for the calculation of the surrogate basis

A corner cutting algorithm for evaluating rational Bézier surfaces and the optimal stability of the basis

J Delgado, JM Peña - SIAM Journal on Scientific Computing, 2007 - SIAM
Bases optimally stable among all bases formed by nonnegative … of multivariate functions
[6]. In section 4 we prove that the basis used in the representation (1.1) has optimal stability

On the evaluation of rational triangular Bézier surfaces and the optimal stability of the basis

J Delgado, JM Peña - Advances in Computational Mathematics, 2013 - Springer
… on optimal stability for spaces of univariate functions have been obtained in [12] and [13],
and examples of optimally stable multivariate bases … Bernstein basis is also optimally stable. …

Evaluation algorithms for multivariate polynomials in Bernstein–Bézier form

E Mainar, JM Peña - Journal of Approximation Theory, 2006 - Elsevier
… , in the sense that there does not exist (up to permutation and scaling) another basis of its …
corresponding multivariate Bernstein basis, although we can mention [7] about optimal stability

[HTML][HTML] Optimal stability of the Lagrange formula and conditioning of the Newton formula

JM Carnicer, Y Khiar, JM Peña - Journal of Approximation Theory, 2019 - Elsevier
… of a function expressed in terms of a given basis. Optimal bases with respect to the Farouki–…
We prove in Section 2 of this paper the optimal stability of the Lagrange representation with …