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JHF

Apparently, this user prefers to keep an air of mystery about them.

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  • Member for 8 years, 3 months
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28 Proofs that the degree of an irrep divides the order of a group Nov 23 '12
15 Holder's inequality for infinite products Feb 19 '13
12 there is no 3-manifold such its fundamental group is isomorphic to direct product Z⊕Z⊕Z⊕Z. Jul 22 '17
11 Topology of the Segre product vs. the product topology May 18 '13
10 Projective closure in the Zariski and Euclidean topologies Apr 20 '13
10 How to find root subgroups Aug 4 '13
9 Calculate the cohomology group of $U(n)$ by spectral sequence. Jun 1 '15
9 No retract $X \wedge \mathbb{R}P^2 \to X \wedge \mathbb{R}P^1$ May 12 '15
8 Applications of Serre duality Jul 29 '13
8 Product in category of cyclic groups. Mar 12 '19
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