12

Questions

7
13
votes
2
answers
1k
views

What group is <a,b | a^2=b^2>?

dec 14 10 at 12:58 Sam Nead 5,3021226

4
11
votes
1
answer
318
views

Conventions for definitions of the cap product

aug 26 10 at 4:29 Tom Goodwillie 26.6k258110

2
9
votes
1
answer
421
views

Ranicki symmetric L-groups of finite fields?

dec 5 10 at 12:06 Andrew Ranicki 1,741198

2
9
votes
1
answer
216
views

Signs and functoriality of tensor products

jul 5 11 at 23:24 Neil Strickland 13.3k12866

2
8
votes
4
answers
576
views

References for Eilenberg-Zilber shuffle product

oct 17 at 10:21 Jake 8113

3
8
votes
2
answers
375
views

What characteristic class information comes from the 2-torsion of $H^*(BSO(n);Z)$?

mar 1 11 at 0:12 Allen Hatcher 7,16922635

2
7
votes
2
answers
329
views

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?

jan 29 11 at 4:38 Tom Goodwillie 26.6k258110

1
7
votes
1
answer
462
views

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?

aug 13 10 at 0:42 Greg Friedman 2,074414

3
5
votes
3
answers
316
views

What is a principal refinement of a Postnikov system?

jul 29 10 at 20:50 Tom Goodwillie 26.6k258110

1
5
votes
1
answer
270
views

When do we need the axiom of compact support for a homology theory to be uniquely defined?

jan 12 11 at 1:13 Tom Goodwillie 26.6k258110

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