Goa'uld's user avatar
Goa'uld's user avatar
Goa'uld's user avatar
Goa'uld
  • Member for 7 years, 10 months
  • Last seen this week
  • P3X-888
8 votes
Accepted

The bigger picture the Five Lemma fits into

7 votes
Accepted

Attempted proof of an open mapping theorem for Lie groups

6 votes

cohomology of pullback

6 votes
Accepted

Degree 1 maps from $S^1 \times S^2$

5 votes
Accepted

How to understand the two definitions of path algebra?

5 votes
Accepted

Cohomological dimension of direct product

5 votes
Accepted

Adapting a proof of the Universal Coefficient Theorem for Homology, but for Cohomology

5 votes
Accepted

Natural action of $\mathbb{Z}G$ on $\mathbb{Z}$?

5 votes

Is wedge sum for finite CW complexes cancellative in the homotopy category?

4 votes
Accepted

What are the homology groups of an abelian group?

4 votes
Accepted

Intuition behind cohomology operations

3 votes

Is it true that cohomological dimension of a group $G$ over a ring $R$ is zero, then group ring $RG$ is semisimple?

3 votes
Accepted

Non-trivial group action with trivial action of maximal torus?

3 votes
Accepted

Compact subsets of $S^\infty$ and other inductive limits

3 votes
Accepted

Proving that $\xi$ is a trivial vector bundle iff $\xi \oplus \varepsilon^1$ is trivial

3 votes
Accepted

If $(X, A)$ is a Good Pair then $i_*:H_n(X, A)\to H_n(X, V)$ is an Isomorphism

3 votes

Infinite Sphere is connected but not compact

2 votes
Accepted

Multiplication of unitary matrices to make symmetric off-diagonal elements zero

2 votes
Accepted

Vector addition over orthogonal group

2 votes

Automatic additivity of multiplicative maps

2 votes
Accepted

A Natural Question When Reading Van Kampen Theorem

1 vote
Accepted

Representation of $Q_8$ over $\mathbb{R}$

1 vote
Accepted

Non-trivial explicit example of a partition of unity

1 vote
Accepted

Group of order $210$

1 vote
Accepted

First homology group of $\pi$ with $G$ when $(|\pi|,|G|)=1$

1 vote

Sylow $p$-subgroup of a finite group

1 vote

Definition of isomorphism classes of vector bundles with reduced structure group

1 vote
Accepted

Representation of Sylow which does not extend

1 vote
Accepted

Is $\mathbb{Z}[G^n]$ isomorphic to $\bigoplus_n\mathbb{Z}[G]$?

1 vote
Accepted

Question regarding action of topological group on sphere