User Brian Borchers

22 votes

Can all convex optimization problems be solved in polynomial time using interior-point algorithms?

answered Apr 3, 2012 at 1:33

12 votes

What do you do if you find a typo in an equation of a paper?

answered May 14, 2011 at 2:49

12 votes

Accepted

Use of games to approximate solutions to Partial Differential Equations

answered Oct 9, 2011 at 15:12

10 votes

Dimensional Analysis in Mathematics

answered May 3, 2011 at 1:55

9 votes

sparsity of QR decomposition

answered Apr 16, 2012 at 13:33

9 votes

How do you tell if a system of linear inequalities has a solution?

answered Mar 31, 2012 at 22:20

8 votes

Normal distribution with positive SEMI-definite covariance matrix

answered Oct 13, 2011 at 3:08

8 votes

Fit to a normal distribution

answered May 5, 2011 at 4:07

8 votes

Elementary mathematical books

answered Feb 22, 2011 at 21:37

7 votes

What are an adviser's responsibilities?

answered Feb 2, 2011 at 1:33

7 votes

Inverting Hessian matrix

answered Mar 30, 2011 at 19:42

7 votes

Are there ill-conditioned problems in infinite precision arithmetric?

answered Jun 2, 2011 at 0:44

7 votes

Accepted

Explicit formula for Cholesky factorization in a special case

answered Apr 25, 2012 at 1:23

7 votes

Accepted

Nonlinearly constrained optimization (quadratic)

answered May 21, 2012 at 18:47

7 votes

Accepted

Nuclear norm (convex) minimization with complex-valued matrices?

answered Jul 24, 2015 at 16:52

6 votes

Why are optimization problems often called "programs"?

answered Oct 17, 2013 at 13:20

6 votes

Accepted

What software one needs to solve a big linear system on a small computer?

answered Oct 19, 2012 at 13:40

6 votes

Computational complexity of unconstrained convex optimisation

answered Mar 11, 2012 at 18:17

6 votes

Accepted

Optimizing a quadratic restricted to the sphere

answered Apr 11, 2011 at 4:44

6 votes

efficient way to compute the inversion of the following matrix

answered Mar 21, 2011 at 14:09

6 votes

Accepted

Cross correlation detection in binary Hamming distance

answered Jan 16, 2011 at 23:00

5 votes

Projected gradient descent for non-convex optimization problems

answered Mar 27, 2011 at 13:31

5 votes

Starting PhD at the age of 25

answered Mar 29, 2011 at 21:50

5 votes

Approximating derivatives between gridpoints

answered Feb 21, 2011 at 21:19

5 votes

How to solve Ax=b incrementally ?

answered Apr 16, 2011 at 12:36

5 votes

Accepted

How do I optimize over (or take derivative wrt) a square diagonal matrix?

answered Sep 10, 2011 at 4:28

5 votes

Characterising semi-definite positiveness on vectors with non-negative entries

answered Jul 24, 2012 at 17:10

4 votes

Trace of multiplied positive definite matrices

answered Mar 13, 2014 at 15:18

4 votes

Math research in the app store

answered Jun 29, 2013 at 14:36

4 votes

Nonconvex optimization problem

answered Jul 3, 2013 at 13:21

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113 Answers

Can all convex optimization problems be solved in polynomial time using interior-point algorithms?

What do you do if you find a typo in an equation of a paper?

Use of games to approximate solutions to Partial Differential Equations

Dimensional Analysis in Mathematics

sparsity of QR decomposition

How do you tell if a system of linear inequalities has a solution?

Normal distribution with positive SEMI-definite covariance matrix

Fit to a normal distribution

Elementary mathematical books

What are an adviser's responsibilities?

Inverting Hessian matrix

Are there ill-conditioned problems in infinite precision arithmetric?

Explicit formula for Cholesky factorization in a special case

Nonlinearly constrained optimization (quadratic)

Nuclear norm (convex) minimization with complex-valued matrices?

Why are optimization problems often called "programs"?

What software one needs to solve a big linear system on a small computer?

Computational complexity of unconstrained convex optimisation

Optimizing a quadratic restricted to the sphere

efficient way to compute the inversion of the following matrix

Cross correlation detection in binary Hamming distance

Projected gradient descent for non-convex optimization problems

Starting PhD at the age of 25

Approximating derivatives between gridpoints

How to solve Ax=b incrementally ?

How do I optimize over (or take derivative wrt) a square diagonal matrix?

Characterising semi-definite positiveness on vectors with non-negative entries

Trace of multiplied positive definite matrices

Math research in the app store

Nonconvex optimization problem