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Mathematics
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wz0919
  • Member for 4 years, 8 months
  • Last seen more than 1 year ago
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question
4
Prove 'dual to the dual norm is the original norm' without using Hahn-Banach theorem?
Aug 24, 2020
question
3
Is $f$ convex if the perspective of $f$ is convex?
Aug 9, 2020
question
3
Under what conditions of $A,B$ we have $\det (A + \lambda B)$ is uniformly $0$ for all $\lambda$?
Mar 6, 2021
question
2
How to solve the optimization problem of PCA?
Jun 27, 2020
question
1
Dual cone's dual cone is the closure of primal cone's convex hull
Aug 8, 2020
question
1
convexity of $\det X^{-1}$
Nov 4, 2020
answer
1
Why "hinge" loss is equivalent to 0-1 loss in SVM?
May 29, 2020
question
0
Does the phase-space plot of Lotka-Volterra equations grows chaotically?
Jan 7, 2020
question
0
How to prove $B-A \succeq 0 \Leftrightarrow$ ellipsoid $x^TBx \leq 1$ contains $x^TAx \leq 1$?
Jul 31, 2020