Greg Friedman
  • Member for 11 years, 7 months
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2 answers
28 votes
5k views
17 bookmarks
What group is $\langle a,b \,| \, a^2=b^2 \rangle$?
5 answers
17 votes
2k views
5 bookmarks
References for Eilenberg-Zilber shuffle product
2 answers
13 votes
828 views
5 bookmarks
What characteristic class information comes from the 2-torsion of $H^*(BSO(n);Z)$?
1 answers
12 votes
2k views
5 bookmarks
Conventions for definitions of the cap product
1 answers
10 votes
526 views
2 bookmarks
Ranicki symmetric L-groups of finite fields?
1 answers
9 votes
410 views
2 bookmarks
Signs and functoriality of tensor products
1 answers
9 votes
1k views
6 bookmarks
How does the Lefschetz-Poincare dual torsion linking pairing on manifolds with boundary interact with the maps of the long exact sequence of the manifold-boundary pair?
0 answers
8 votes
618 views
1 bookmarks
Homology of inverse limits over inverse systems more complicated than towers
3 answers
8 votes
824 views
5 bookmarks
What is a principal refinement of a Postnikov system?
0 answers
7 votes
189 views
2 bookmarks
Do smooth maps with nowhere-maximal rank have small image?
2 answers
7 votes
657 views
6 bookmarks
Where can I find resources for creating a mathematics "bridge course"?
2 answers
7 votes
406 views
3 bookmarks
Are there oriented $4k+2$ manifolds such that $im(H_{2k+1}(M; Z/2)\to H_{2k+1}(M, \partial M; Z/2))$ has odd dimension?
1 answers
6 votes
463 views
1 bookmarks
When do we need the axiom of compact support for a homology theory to be uniquely defined?
0 answers
5 votes
466 views
2 bookmarks
Alternative approaches to the universal coefficient theorem
0 answers
2 votes
181 views
Are open convex PL subsets of R^n PL homeomorphic to R^n?