Mathematics
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JHF's user avatar
JHF
  • Member for 11 years
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All Questions Answers
Score Newest
question
37
Proofs that the degree of an irrep divides the order of a group
Nov 23, 2012
question
16
Holder's inequality for infinite products
Feb 19, 2013
question
13
Projective closure in the Zariski and Euclidean topologies
Apr 20, 2013
answer
12
there is no 3-manifold such its fundamental group is isomorphic to direct product Z⊕Z⊕Z⊕Z.
Jul 22, 2017
question
11
Topology of the Segre product vs. the product topology
May 18, 2013
answer
11
Calculate the cohomology group of $U(n)$ by spectral sequence.
Jun 1, 2015
answer
11
How to find root subgroups
Aug 4, 2013
answer
9
The first Stiefel-Whitney class is zero if and only if the bundle is orientable
Jun 15, 2016
question
9
No retract $X \wedge \mathbb{R}P^2 \to X \wedge \mathbb{R}P^1$
May 12, 2015
question
8
Applications of Serre duality
Jul 29, 2013

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