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15
Math.TechQA.Club
2026-05-10 17:16:47
492
Views
Group cohomology of finite groups with real coefficients vanishes?
Published on
10 May 2026 - 17:16
#finite-groups
#exact-sequence
#group-cohomology
2.3k
Views
Relative homology $H_n(T^2,S^1)$ (Hatcher, Exc 2.1,17.b)
Published on
15 Apr 2026 - 6:57
#proof-verification
#algebraic-topology
#homology-cohomology
#exact-sequence
625
Views
Functor preserving long exact sequences
Published on
13 Apr 2026 - 9:57
#homology-cohomology
#homological-algebra
#exact-sequence
318
Views
How to compute Čech homology and Mayer-Vietoris sequence upon passing a critical point of the energy functional of free loop space as a CW complex?
Published on
23 Apr 2026 - 18:49
#algebraic-topology
#homology-cohomology
#exact-sequence
#loop-spaces
405
Views
$p$-torsion elements and exact sequence
Published on
15 Apr 2026 - 5:06
#abstract-algebra
#modules
#p-adic-number-theory
#exact-sequence
30
Views
$\pi_j(G_{cont}/G_{finite})$
Published on
16 Apr 2026 - 5:19
#manifolds
#lie-groups
#homotopy-theory
#quotient-spaces
#exact-sequence
162
Views
Do long exact Mayer Vietoris sequences decompose into short exact sequences $0\to H_n(A\cap B)\to H_n(A)\oplus H_n(B)\to H_n(X)\to 0$?
Published on
15 Apr 2026 - 2:58
#algebraic-topology
#exact-sequence
81
Views
Image of exact sequence still exact?
Published on
17 Apr 2026 - 13:20
#algebraic-geometry
#algebraic-topology
#homotopy-theory
#fiber-bundles
#exact-sequence
102
Views
Pin group isomorphisms
Published on
10 May 2026 - 14:03
#group-theory
#manifolds
#lie-groups
#exact-sequence
#spin-geometry
751
Views
How to compute cellular homology of a handle decomposition $D^m\cup H^{\gamma_1}\cup\dots\cup H^{\gamma_N}$
Published on
11 Apr 2026 - 22:05
#algebraic-topology
#homology-cohomology
#exact-sequence
961
Views
Homotopy pullback square and fiber sequence
Published on
10 Apr 2026 - 22:04
#algebraic-topology
#homotopy-theory
#fiber-bundles
#exact-sequence
190
Views
New symbol for an exact sequence
Published on
17 Apr 2026 - 11:46
#group-theory
#notation
#homological-algebra
#exact-sequence
52
Views
Right/Left-exactness in Abelian categories
Published on
14 Apr 2026 - 22:17
#category-theory
#exact-sequence
#abelian-categories
#functors
131
Views
A question about exact sequences of modules and endomorphisms.
Published on
15 Apr 2026 - 12:04
#abstract-algebra
#modules
#exact-sequence
1.2k
Views
Length of a module in a short exact sequence
Published on
14 Apr 2026 - 21:58
#abstract-algebra
#commutative-algebra
#modules
#exact-sequence
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