- #1
Euge
Gold Member
MHB
POTW Director
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- 244
Here is this week's POTW:
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Let $f : \Bbb R^n \to \Bbb R$ be twice differentiable function whose Hessian matrix is everywhere positive semidefinite. Show that $f$ is convex.
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Let $f : \Bbb R^n \to \Bbb R$ be twice differentiable function whose Hessian matrix is everywhere positive semidefinite. Show that $f$ is convex.
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