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Let K be the closure of a bounded open set with smooth boundary in C^n. A Fekete configuration of order p for K is a finite subset of K maximizing the Vandermonde determinant associated with polynomials of degree at most p. A recent theorem…

Complex Variables · Mathematics 2016-05-24 Tien-Cuong Dinh , Xiaonan Ma , Viet-Anh Nguyen

Let L be a positive line bundle over a compact complex projective manifold X and K be a compact subset of X which is regular in a sense of pluripotential theory. A Fekete configuration of order k is a finite subset of K maximizing a…

Complex Variables · Mathematics 2015-12-29 Duc-Viet Vu

Building on the first two authors' previous results, we prove a general criterion for convergence of (possibly singular) Bergman measures towards equilibrium measures on complex manifolds. The criterion may be formulated in terms of growth…

Complex Variables · Mathematics 2009-07-17 Robert J. Berman , Sebastien Boucksom , David Witt Nystrom

We discuss the growth of the Lebesgue constants for polynomial interpolation at Fekete points for fixed degree (one) and varying dimension, and underlying set $K\subset \R^d$ a simplex, ball or cube.

Numerical Analysis · Mathematics 2023-05-04 Len Bos

We survey what is known about Fekete points/optimal designs for a simplex in $\R^d.$ Several new results are included. The notion of Fej\'er exponenet for a set of interpolation points is introduced.

Numerical Analysis · Mathematics 2022-05-16 Len Bos

We construct approximate Fekete point sets for kernel-based interpolation by maximising the determinant of a kernel Gram matrix obtained via truncation of an orthonormal expansion of the kernel. Uniform error estimates are proved for kernel…

Numerical Analysis · Mathematics 2020-06-23 Toni Karvonen , Simo Särkkä , Ken'ichiro Tanaka

In this article, we study the Fekete problem in segmental and combined nodal-segmental univariate polynomial interpolation by investigating sets of segments, or segments combined with nodes, such that the Vandermonde determinant for the…

Numerical Analysis · Mathematics 2024-03-15 Ludovico Bruni Bruno , Wolfgang Erb

In this paper, we provide a detailed analysis of the global convergence properties of an extensively studied and extremely effective fixed-point algorithm for the Kullback-Leibler approximation of spectral densities, proposed by Pavon and…

Optimization and Control · Mathematics 2018-01-26 Giacomo Baggio

The notion of asymptotic Fekete arrays, arrays of points in a compact set $K\subset {\bf C}^d$ which behave asymptotically like Fekete arrays, has been well-studied, albeit much more recently in dimensions $d>1$. Here we show that one can…

Complex Variables · Mathematics 2022-10-20 T. Bloom , L. Bos , N. Levenberg

In this note, we obtain the growth order of Lebesgue constants for Fekete points associated with tensor powers of a positive line bundle. Moreover, by endowing the space of global holomorphic sections with a natural Gaussian probability…

Complex Variables · Mathematics 2020-04-07 Turgay Bayraktar

We prove a result concerning the spreading of weighted Fekete points in the plane.

Complex Variables · Mathematics 2016-06-07 Yacin Ameur

We bound the rate of uniform convergence in compact sets for both entropic potentials and their gradients towards the Brenier potential and its gradient, respectively. Both results hold in the quadratic Euclidean setting for absolutely…

Classical Analysis and ODEs · Mathematics 2026-02-23 Pablo López-Rivera

We give the connections among the Fekete sets, the zeros of orthogonal polynomials, $1(w)$-normal point systems, and the nodes of a stable and most economical interpolatory process via the Fej\'er contants. Finally the convergence of a…

Classical Analysis and ODEs · Mathematics 2013-01-29 Á. P. Horváth

We prove the several variable version of the classical equidistribution theorem for Fekete points of a compact subset of the complex plane, which settles a well-known conjecture in pluri-potential theory. The result is obtained as a special…

Complex Variables · Mathematics 2008-07-02 R. Berman , S. Boucksom

In 1986 Paw{\l}ucki and Ple\'sniak introduced the notion of {\sl uniformly polynomially cuspidal} (UPC) sets and proved that every relatively compact and fat subanalytic subset of ${\Rz}^n$ satisfies the UPC condition. Herein we investigate…

Metric Geometry · Mathematics 2018-04-30 Anna Denkowska , Maciej P. Denkowski

Fekete polynomials associate with each prime number $p$ a polynomial with coefficients $-1$ or $1$ except the constant term, which is 0. These coefficients reflect the distribution of quadratic residues modulo $p$. These polynomials were…

Number Theory · Mathematics 2022-06-17 Jan Minac , Tung T. Nguyen , Nguyen Duy Tan

This study develops a fixed-time convergent saddle point dynamical system for solving min-max problems under a relaxation of standard convexity-concavity assumption. In particular, it is shown that by leveraging the dynamical systems…

Optimization and Control · Mathematics 2022-07-28 Kunal Garg , Mayank Baranwal

In this paper, we study the Dirichlet problem for Laplace's equation in an open disk. The uniqueness of solutions is ensured by the well-known weak maximum principle. We introduce a novel approach to demonstrate the existence of a solution…

Analysis of PDEs · Mathematics 2025-03-13 Haesung Lee

A novel method which is called the Chebyshev inertial iteration for accelerating the convergence speed of fixed-point iterations is presented. The Chebyshev inertial iteration can be regarded as a valiant of the successive over relaxation…

Optimization and Control · Mathematics 2021-06-09 Tadashi Wadayama , Satoshi Takabe

Let $f$ be a rational function of degree $d>1$ on the projective line over a possibly non-archimedean algebraically closed field. A well-known process initiated by Brolin considers the pullbacks of points under iterates of $f$, and produces…

Dynamical Systems · Mathematics 2015-05-21 Yûsuke Okuyama
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