Alex Shtoff's user avatar
Alex Shtoff's user avatar
Alex Shtoff's user avatar
Alex Shtoff
  • Member for 12 years, 9 months
  • Last seen this week
17 votes
0 answers
470 views

An interesting first order method

10 votes
3 answers
617 views

Box-constrained orthogonal matrix

9 votes
1 answer
312 views

Convergent piecewise-constant approximation of l.s.c function

7 votes
1 answer
8k views

Lipschitz continuous Gradient and bounded Hessian

7 votes
1 answer
182 views

Initial ellipsoid for the ellipsoid method for unconstrained minimization

6 votes
1 answer
603 views

radially unbounded functions and 1D characterization.

6 votes
1 answer
3k views

Fourier transform of a multivariate gaussian

5 votes
0 answers
323 views

Moreau Decomposition with Bregman Distance

3 votes
0 answers
102 views

Scale-agnostic, differentiable, co-planarity measure

3 votes
1 answer
98 views

Can a semialgebraic function be continuously extended to the closure of its domain?

2 votes
1 answer
250 views

Differential equation with one univariate function and several variables

2 votes
1 answer
385 views

Cylinder silhouette

2 votes
1 answer
229 views

Minimize $\ell_1$ norm subject to $\ell_2$ constraint

1 vote
1 answer
130 views

Efficient solution for a quadratic + norm objective.

1 vote
0 answers
29 views

Solution to a nonlinear problem at an extreme point

1 vote
0 answers
461 views

Point-wise error estimate in polynomial regression

1 vote
2 answers
206 views

Lower semicontinuity and partial minimization

1 vote
1 answer
493 views

Projection onto the set of orthogonal matrices

1 vote
1 answer
55 views

Bound on eigenvalues of a certain symmetric DPR1 matrix

1 vote
1 answer
57 views

Derivative of a 1D function involving matrix inversion

1 vote
1 answer
207 views

Differentiable orthogonal 3D vector

0 votes
1 answer
50 views

Continuity of a maximum with respect to parameters

0 votes
2 answers
623 views

Gradient and Hessian of a function defined in terms of matrix inverse

0 votes
0 answers
241 views

KKT system with rank-deficient constraints