Object

Title: Chebyshev's extremal problems of polynomial growth in real normed spaces

Publication Details:

«ՀՀ ԳԱԱ Տեղեկագիր: Մաթեմատիկա»-ն լույս է տեսնում 1966 թվականից՝ տարին 6 անգամ։

Journal or Publication Title:

ՀՀ ԳԱԱ Տեղեկագիր: Մաթեմատիկա =Известия НАН Армении: Математика =Proceedings of the NAS Armenia: Mathematics

Date of publication:

2001

Volume:

36

Number:

5

ISSN:

00002-3043

Official URL:


Additional Information:

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Other title:

Чебышевские экстремальные задачи полиномиального роста в вещественных нормированных пространствах / С. Г. Ревес, Я. Сарантопулос.

Contributor(s):

Գլխավոր խմբ․՝ Մ․ Մ․ Ջրբաշյան (1966-1994) ; Ռ․ Վ․ Համբարձումյան (1994-2009) ; Ա․ Ա․ Սահակյան (2010-)

Coverage:

62-81

Abstract:

Let K be a convex body in a real space X, and let p : X - IR be a polynomial of degree n bounded by 1 on K. Given x € X / K, how large can p(x) be? This classical question was raised and settled by P. Chebyshev for one variable real polynomials, bounded on intervals (the only one dimensional convex bodies) one and a half century ago. Rivlin and Shapiro [23] gave a generalization of this Chebyshev problem IR for strictly convex bodies, and Kroo and Schmidt [12] solved the problem in IR for arbitrary convex bodies. The paper solves Chebyshev estremal problem for normed spaces. In the course of proof we obtain some new auxiliary geometric results, connected to the generalized Minkowski fnctional on normed spaces. As shown by examples, the previous finite dimensional considerations and resuls can not be extended to infinite dimensional spaces.

Place of publishing:

Երևան

Publisher:

Հայաստանի ԳԱԱ

Date created:

2001-10-18

Format:

pdf

Identifier:

oai:arar.sci.am:112374

Call number:

АЖ 411

Digitization:

ՀՀ ԳԱԱ Հիմնարար գիտական գրադարան

Location of original object:

ՀՀ ԳԱԱ Հիմնարար գիտական գրադարան

Object collections:

Last modified:

Sep 24, 2024

In our library since:

Apr 2, 2020

Number of object content hits:

21

All available object's versions:

https://arar.sci.am/publication/123677

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