买合木提·买买提, Aigerim Tleulessova. τ-可测正算子迹函数的联合凹凸性(英文)[J]. Journal of Xinjiang University (Natural Science Edition in Chinese and English), 2011, 28(4): 421-425.
买合木提·买买提, Aigerim Tleulessova. τ-可测正算子迹函数的联合凹凸性(英文)[J]. Journal of Xinjiang University (Natural Science Edition in Chinese and English), 2011, 28(4): 421-425.DOI：
τ-可测正算子迹函数的联合凹凸性(英文)
摘要
给出了迹函数f(A
B)=τ(Ap+Bp)1/p是(A
B)的联合凹函数与联合凸函数的充要条件.
Abstract
We give the necessary and sufficient condition for the trace function f(A
B) = τ(Ap + Bp)1/p to be jointly convex and jointly concave in(A
B).
关键词
Keywords
references
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