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Rodrigo Dias
  • Member for 5 years, 8 months
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9 votes
1 answer
227 views

About non-separable Hilbert spaces

7 votes
2 answers
331 views

Grothendieck group "commutes" with direct sum

5 votes
2 answers
654 views

Question on star shaped domains

5 votes
2 answers
198 views

Maximal solution of a differential equation belongs to manifold $M$.

5 votes
2 answers
891 views

Hairy Ball Theorem: homotopy from the identity to the antipodal map

4 votes
1 answer
712 views

Position operator

4 votes
1 answer
163 views

Dimension of kernel of Fredholm operator

3 votes
1 answer
120 views

Continuity concerning family of projections

3 votes
4 answers
110 views

Showing that a topological space is ${\rm T}_1$

3 votes
3 answers
643 views

If $(ab)^k = a^k b^k$ for two consecutives integers $k$, is $G$ abelian? [duplicate]

2 votes
1 answer
99 views

Almost every convergence imply this equivalence

2 votes
1 answer
609 views

Proper function sends closed sets in closed sets

2 votes
1 answer
61 views

How to deal with this $\limsup$?

2 votes
1 answer
69 views

Continuous path of Fredholm operators

2 votes
0 answers
86 views

Homeomorphism between a piece of sphere and a convex set on a Banach space.

2 votes
1 answer
127 views

Why does this short exact sequence split?

1 vote
3 answers
71 views

Example of an element in $\,\ell^q\!\smallsetminus \ell^p$, with $1< p<q$

1 vote
0 answers
25 views

Equivalence of families indexes of Fredholm operators

1 vote
1 answer
70 views

Is this sequence exact?

1 vote
2 answers
88 views

Proving a set is closed using a continuous map

0 votes
1 answer
139 views

Local Inverse Function Theorem consequence

0 votes
1 answer
107 views

The Implicit Function Theorem doesn't work here, what should I do?