期刊论文详细信息
International Journal of Mathematics and Mathematical Sciences
Sign changes in linear combinations of derivatives and convolutions of Polya frequency functions
Steven Nahmias1  Frank Proschan2 
[1] Department of Mathematics, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA;Department of Statistics, Florida State University, Tallahassee, Florida 32306, USA;
关键词: Polya frequency functions;    sign changes;    derivatives;    convolutions;    total positivity;    variation diminishing property;    linear combinations;    sign regular functions.;   
DOI  :  10.1155/S0161171279000090
来源: DOAJ
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