real analysis - The dual function g is concave, even when the

Wikipedia reads, "The dual function g is concave, even when the initial problem is not convex, because it is a point-wise infimum of affine functions." Can someone explain this? Maybe provide a basic

Real Analysis I: L20 - Theory of differentiable functions: convex

The Lagrangean dual function L(π) seen a piecewise affine concave

Eigenvalue λs is a concave function of s, plotted for different

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real analysis - Is this function concave? - MathOverflow

Entropy, Free Full-Text

Solved i. (2 points) Let's look at the formal definition of

Jensen's inequality - HandWiki

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NMaximize—Wolfram Language Documentation

Solved The graph of the continuous function g is shown above

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