中文

指数在紧凸集中的多项式及相关的加权极值函数——基本结果

复变函数 2024-11-01 v4

摘要

本文是关于多次调和理论的一篇综述,其中通常的多项式环被多项式环PS(Cn)\mathcal P^S(\mathbb C^n)所替代,其中mm次多项式的指数被限制于mSmS,这里SR+nS\subseteq \mathbb R^n_+是紧凸集且0S0\in S。我们对SS不假设其他条件,因为这些是PS(Cn)\mathcal P^S(\mathbb C^n)成为分次多项式环所必需的。我们研究PS(Cn)\mathcal P^S(\mathbb C^n)与全局多次调和函数类LS(Cn)\mathcal L^S(\mathbb C^n)之间的关系,其中增长由SS的对数支撑函数决定。我们给出它们各自的加权极值函数ΦK,qS\Phi_{K, q}^SVK,qSV_{K, q}^SSS的性质相关的性质。

关键词

引用

@article{arxiv.2305.04779,
  title  = {Polynomials with exponents in compact convex sets and associated weighted extremal functions -- Fundamental results},
  author = {Benedikt Steinar Magnússon and Álfheiður Edda Sigurðardóttir and Ragnar Sigurðsson and Bergur Snorrason},
  journal= {arXiv preprint arXiv:2305.04779},
  year   = {2024}
}

备注

33 pages, 1 figure. Version 4: Minor corrections and adjustments. To appear in Annales Polonici Matgematici. Version 3: The article has been reorganized and various improvements made, most notably Theorem 3.6, Theorem 5.8 and results on regularity in Sections 4 and 5. Article arXiv:2305.06847, on characterization of polynomials by L^2-estimates, has merged into the article as Section 7