ppyang

287

Reputation

182 views

Registered User

Name	ppyang
Member for	1 year
Seen	Mar 30 at 1:58
Website
Location
Age

stats recent reputation favorites

Questions

votes newest views recent

votes

answer

176

views

What is the geometry of the intersection of some cones defined by generalized inequalities?

matrices linear-algebra

nov 27 at 16:46 K Audenaert 36●1

votes

answer

204

views

Is it possible to extend this inequality about Euclidean distance &Frobenius norm to more general Bregman divergence such as relative entropy & von Neumann divergence?

apr 18 12 at 5:44 ppyang 287●2●6

votes

answer

557

views

How to calculate the inverse of the sum of an identity and a Kronecker product efficiently?

matrices linear-algebra inverse

jun 15 at 23:50 Betrand 374●8

votes

answer

219

views

What is the minimum of the Frobenius norm in the intersection of positive semidefinite cones?

oc.optimization-control matrices eigenvector linear-algebra

feb 23 12 at 2:27 S. Sra 10k●1●16●44

votes

answers

184

views

Does this inequality of negative relative entropy and quantum relative entropy hold?

qa.quantum-algebra inequalities von-neumann-algebras linear-algebra entropy

apr 6 12 at 5:28 ppyang 287●2●6

votes

answer

views

Given $\mathbf{x}_i^\top A\mathbf{x}_i$ for a SPD matrix $A$ and orthonormal bases $\mathbf{x}_i$, what is the bound of its eigenvalues?

matrices linear-algebra

mar 1 12 at 9:59 ppyang 287●2●6

vote

answers

128

views

Given a jointly convex function $f$, what is the bound of $f\left(\sum_ip_i^2x_i,\sum_jq_j^2y_j\right)$if $\mathbf{p},\mathbf{q}$ are constrained in a manifold?

inequalities convexity linear-algebra

mar 24 12 at 15:11 ppyang 287●2●6

vote

answers

255

views

How to calculate this expectation where the random variable is restricted on a sphere? [closed]

stochastic-calculus

nov 20 11 at 22:42 Didier Piau 4,193●1●10●15

vote

answers

675

views

How to calculate this expectation with logarithm?

stochastic-calculus

nov 22 11 at 0:42 Brendan McKay 9,120●1●13●33

vote

answers

137

views

How to deal with the vector norm item as a denominator in this expectation?

stochastic-calculus

dec 13 11 at 7:24 ppyang 287●2●6

Answers

Is it possible to extend this inequality about Euclidean distance &Frobenius norm to more general Bregman divergence such as relative entropy & von Neumann divergence?

How to solve this optimization with the orthogonal constraint?

Votes

Badges

● Yearling
● Teacher

● Enthusiast
● Commentator

● Supporter
● Scholar

● Student
● Editor

user feed

ppyang

Account Recovery

Registered User

Questions

What is the geometry of the intersection of some cones defined by generalized inequalities?

Is it possible to extend this inequality about Euclidean distance &Frobenius norm to more general Bregman divergence such as relative entropy & von Neumann divergence?

How to calculate the inverse of the sum of an identity and a Kronecker product efficiently?

What is the minimum of the Frobenius norm in the intersection of positive semidefinite cones?

Does this inequality of negative relative entropy and quantum relative entropy hold?

Given $\mathbf{x}_i^\top A\mathbf{x}_i$ for a SPD matrix $A$ and orthonormal bases $\mathbf{x}_i$, what is the bound of its eigenvalues?

Given a jointly convex function $f$, what is the bound of $f\left(\sum_ip_i^2x_i,\sum_jq_j^2y_j\right)$if $\mathbf{p},\mathbf{q}$ are constrained in a manifold?

How to calculate this expectation where the random variable is restricted on a sphere? [closed]

How to calculate this expectation with logarithm?

How to deal with the vector norm item as a denominator in this expectation?

Answers

Votes

Tags

Badges