naa a22 4500 510811698 CHVBK 20180411083445.0 cr unu---uuuuu 180411e20130401xx s 000 0 eng 10.1134/S0081543813010021 doi (NATIONALLICENCE)springer-10.1134/S0081543813010021 Belov A. Ivanovo State University, ul. Ermaka 39, 153025, Ivanovo, Russia aut On positive definite piecewise linear functions and their applications [Elektronische Daten] [A. Belov] Positive definite piecewise linear functions are applied to the study of the properties of nonnegative trigonometric polynomials and to the analysis of some extremal problems on sets of positive definite functions. Pleiades Publishing, Ltd., 2013 Proceedings of the Steklov Institute of Mathematics SP MAIK Nauka/Interperiodica 280/1(2013-04-01), 5-33 0081-5438 280:1<5 2013 280 11501 https://doi.org/10.1134/S0081543813010021 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0081543813010021 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Belov A. Ivanovo State University, ul. Ermaka 39, 153025, Ivanovo, Russia aut NATIONALLICENCE 773 0- Proceedings of the Steklov Institute of Mathematics SP MAIK Nauka/Interperiodica 280/1(2013-04-01), 5-33 0081-5438 280:1<5 2013 280 11501 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer