摘要 : Schoenberg's classical 1938 theorem asserts that, given a function ρ: G × G → C, the function exp(-tρ) is a positive definite kernel on G × G for any t > 0 if and only if the kernel ρ is Hermitian and negative definite on G × G. ... 展开
作者 | V. P. Zastavnyi |
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作者单位 | |
期刊名称 | 《Mathematical notes》 |
页码/总页数 | 66-76 / 11 |
语种/中图分类号 | 英语 / O1 |
关键词 | positive definite matrix-valued kernel conditionally negative definite matrix-valued kernel completely monotone function Bernstein function Schoenberg's theorem |
DOI | 10.1134/S0001434623070064 |
馆藏号 | O-188 |