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hjhjhj57
  • Member for 9 years, 9 months
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18 votes
2 answers
1k views

Why are noetherian and artinian modules important?

8 votes
1 answer
2k views

Ideal of product of affine varieties [duplicate]

7 votes
1 answer
679 views

Number of fixed points of torus action over partial flag variety

7 votes
0 answers
261 views

How to intuitively understand prolongations

7 votes
1 answer
1k views

Characterization of projective and injective modules

6 votes
0 answers
352 views

Exact sequence of tangent spaces of principal $G$-bundles

3 votes
0 answers
393 views

Approximation of holomorphic functions and topological properties

3 votes
2 answers
259 views

Advice on how to use previous exams to study [closed]

2 votes
0 answers
478 views

Winning strategy for solitaire?

2 votes
1 answer
158 views

To what categorical concept is this proposition equivalent to...

2 votes
1 answer
177 views

Topology of $GL_n(K)$

2 votes
1 answer
597 views

Proving dense set is core for a self adjoint operator

2 votes
1 answer
253 views

Showing that a CCC with a zero object is the trivial category

2 votes
3 answers
340 views

Undergrad level presentation on homological algebra and some related topics

1 vote
1 answer
101 views

Open and closed localization of sheaves

1 vote
0 answers
138 views

Inequality involving incomplete gamma function

1 vote
1 answer
383 views

Fractions and big $O$ notation.

1 vote
0 answers
78 views

Showing the action of $SO(p,q)$ in the punctured cone of isotropic vectors is transitive

1 vote
1 answer
86 views

Globally defined exponential in a particular homogeneous space

1 vote
2 answers
623 views

How to formally define the generated $\sigma$-algebra

1 vote
1 answer
75 views

Does this series have a closed form?

0 votes
1 answer
189 views

How many connected components does the punctured cone of isotropic vectors have?

0 votes
1 answer
2k views

Easy question about compactly contained sets

0 votes
1 answer
71 views

Why do we need to take the closure in the definition of projective closure?