Top network posts

• 21 Inner product on $C(\mathbb R)$
• 17 Is every Hilbert space separable?
• 14 Is KKT conditions necessary and sufficient for any convex problems?
• 13 Orthogonal Projection of $ z $ onto the Affine set $ \left\{ x \mid A x = b \right\} $
• 13 Ensuring that a symmetric matrix with nonnegative elements is positive semidefinite
• 13 How to show that $A^2=AB+BA$ implies $\det(AB-BA)=0$ for $3\times3$ matrices?
• 12 Using the Bolzano's theorem to prove that exists only one solution in the interval.
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