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general/convex-analysis

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Concave function

Negative of a convex function

general/convex-analysis
Convex function

Real function with secant line between points above the graph itself

general/convex-analysis
Hilbert projection theorem

On closed convex subsets in Hilbert space

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Hadamard three-lines theorem
general/convex-analysis
Ekeland's variational principle
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Convex conjugate

Generalization of the Legendre transformation

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Pseudoconvex function

Type of function

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Indicator function (convex analysis)
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Invex function
general/convex-analysis
Moreau's theorem
general/convex-analysis
Recession cone

Set of vectors in convex analysis

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Kachurovskii's theorem

Mathematical theorem

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Proper convex function
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Uniformly convex space

Concept in mathematics of vector spaces

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Minkowski functional

Function made from a set

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Quasiconvex function

Mathematical function with convex lower level sets

general/convex-analysis
Gauss–Lucas theorem

Geometric relation between the roots of a polynomial and those of its derivative

general/convex-analysis