МНОЖЕСТВО НЕОТРИЦАТЕЛЬНОСТИ НАИМЕНЬШЕЙ МЕРЫ МНОГОЧЛЕНОВ С НУЛЕВЫМ ВЗВЕШЕННЫМ СРЕДНИМ ЗНАЧЕНИЕМ НА ОТРЕЗКЕ

Translated title of the contribution: Nonnegativity set of smallest measure for polynomials with zero weighted mean value on a closed interval

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Abstract

Let be the set of algebraic polynomials p nof order n with real coefficients and zero weighted mean value with respect to the ultraspherical weight on the interval [-1,1]: We study the problem on the smallest possible value of the measure of the set of points of the interval at which the polynomial is nonnegative. In this paper, the properties of an extremal polynomial of this problem are studied and an exact solution is presented for the case of cubic polynomials.
Translated title of the contributionNonnegativity set of smallest measure for polynomials with zero weighted mean value on a closed interval
Original languageRussian
Pages (from-to)211-223
Number of pages12
JournalТруды института математики и механики УрО РАН
Volume18
Issue number4
Publication statusPublished - 2012

GRNTI

  • 27.00.00 MATHEMATICS

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  • VAK List

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