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单词 Infimal convolution
释义

Infimal convolution

英语百科

Convex conjugate

Convexity

For two functions f_0 and f_1 and a number 0\le \lambda\le 1 the convexity relation

holds. The \star operation is a convex mapping itself.

The infimal convolution (or epi-sum) of two functions f and g is defined as

Let f1, …, fm be proper, convex and lsc functions on R. Then the infimal convolution is convex and lsc (but not necessarily proper), and satisfies

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