Skip to main content
Superdivinidad's user avatar
Superdivinidad's user avatar
Superdivinidad's user avatar
Superdivinidad
  • Member for 1 year, 2 months
  • Last seen this week
5 votes
1 answer
126 views

In which conditions the limit of an infinite sum is equal to the infinite sum of the limits?

3 votes
0 answers
66 views

Calculating an integral depending on a parameter

3 votes
1 answer
182 views

A complete exercise of Algebraic topology [closed]

3 votes
1 answer
55 views

Question about external derivative

3 votes
1 answer
53 views

Computing the fundamental group of a union of subspaces

3 votes
3 answers
65 views

A maximal vectorial subspace has a 1-dimensional complement.

3 votes
0 answers
28 views

Proving the existence of a functional for a set and a exterior point

3 votes
1 answer
179 views

Understanding flat modules

2 votes
0 answers
29 views

Does linear operator of range $n \in \Bbb{N}$ conserve inner product?

2 votes
0 answers
39 views

Understunding how to find a regular expresion for a regular language

2 votes
1 answer
117 views

If every subspace of a normed space is closed, then the dimension is finite

2 votes
3 answers
63 views

Calculating a limit as a consequence of the Dominated Convergence Theorem

2 votes
1 answer
124 views

Question about simply connectedness

2 votes
0 answers
32 views

Traspositions' formula in $S_4$

1 vote
0 answers
55 views

Verify Proof in First Order Logic: $\forall x (fex=e \rightarrow x=e)$

1 vote
1 answer
75 views

Understunding the inherited atlas

1 vote
1 answer
53 views

Is the intersection of a uncountable real numbers subset with the complemetary of a countable subset uncountable? [duplicate]

1 vote
1 answer
73 views

Problem about derivation on smooth manifolds

1 vote
1 answer
55 views

An application of the differentiation under the integral sign

1 vote
1 answer
58 views

Calculating a series with the Beppo-Levi Theorem

1 vote
1 answer
79 views

Compactness of an infinite stairway with a isolated point.

1 vote
0 answers
52 views

Are two circumferences with one point in common homeomorphic to R with this topology?

1 vote
2 answers
40 views

Measure of a disjoint non-countable union

1 vote
2 answers
91 views

A function which conserves null-sets

1 vote
2 answers
45 views

The polynomial ideal associated to a prime ideal is prime

1 vote
2 answers
175 views

Computing the fundamental group of a quotient space

1 vote
1 answer
207 views

If the quotient of an ideal is principal, is the original ideal principal?

1 vote
0 answers
39 views

Question on the proof of localization of tensor product isomorphic to tensor product of localization

1 vote
1 answer
44 views

Proving that the intersection of kernels is the span of two vectors

1 vote
0 answers
62 views

A closed subspace of a Banach space is complemented iff there is a projection on it