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some guy on the street's user avatar
some guy on the street's user avatar
some guy on the street
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11 Questions

Score Activity Newest Views
19 votes
4 answers
2k views

Irreducible polynomials with constrained coefficients

12 votes
0 answers
772 views

What's so difficult about $\pi_{15}(SO)$?

12 votes
4 answers
2k views

The most general context of Mather's Cube Theorems

10 votes
2 answers
265 views

Discrete disjoint covering of integer lattices

7 votes
1 answer
382 views

Status of the Isomorphism problem for automatic groups?

6 votes
1 answer
483 views

A curious construction of a chain complex and its homology

4 votes
2 answers
887 views

About higher Ext in R-Mod

4 votes
1 answer
877 views

Contractability of Exotic R^4s

4 votes
0 answers
298 views

Connecting group ring, abelianization

4 votes
1 answer
241 views

Topological Localization of (the simply-connected cover of) SO or Spin

3 votes
3 answers
1k views

Limits are terminal objects in another category; (when) are they colimits of (another diagram)?