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Guillaume
  • Member for 9 years, 1 month
  • Last seen more than a month ago
  • Paris, France
6 votes
1 answer
468 views

Image of a bounded sequence by a convex continuous function in a Banach space

4 votes
1 answer
1k views

Bounded sequence in probability admits converging subsequence in probability?

3 votes
2 answers
2k views

Is a self-adjoint operator continuous on its domain?

3 votes
2 answers
129 views

Is the range of a self-adjoint operator stable by its exponential?

3 votes
1 answer
2k views

A lower semi-continuous convex function being not continuous on its domain

2 votes
1 answer
1k views

Singular values of such block matrix

2 votes
1 answer
111 views

About extracting a summable subsequence from a nonsummable sequence

2 votes
1 answer
315 views

Example of function being two times differentiable at a point but not $C^2$

2 votes
0 answers
185 views

Does convexity on a set implies hessian PSD on the boundary?

1 vote
1 answer
379 views

Have you ever seen this result about pointwise/uniform convergence of a net of continuous functions?

1 vote
1 answer
506 views

Null space of the sum of two positive semidefinite matrices