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15
Math.TechQA.Club
2026-04-12 22:07:47
189
Views
Do 'zeros and poles' (with multiplicity) of a complex-valued function correspond to 'holes' of the de Rham cohomology of a punctured plane?
Published on
12 Apr 2026 - 22:07
#complex-analysis
#algebraic-topology
#differential-topology
#homology-cohomology
#de-rham-cohomology
93
Views
Bourwer degree zero degree lemma
Published on
11 Apr 2026 - 1:30
#differential-geometry
#differential-topology
144
Views
Realization of subgroups of $\pi_1(M)$ by submanifolds
Published on
14 Apr 2026 - 22:12
#algebraic-topology
#manifolds
#differential-topology
#fundamental-groups
#low-dimensional-topology
137
Views
$\mathbf{Z}_2$-oriented vs $\mathbf{Z}_2$- orientable?
Published on
15 Apr 2026 - 15:29
#general-topology
#differential-geometry
#algebraic-topology
#differential-topology
#geometric-topology
102
Views
Differential of a smooth map is differential of each coordinate
Published on
15 Apr 2026 - 21:34
#differential-geometry
#manifolds
#differential-topology
#smooth-manifolds
#tangent-spaces
73
Views
Reference request for functorial approach to classifying spaces
Published on
17 Apr 2026 - 8:12
#differential-topology
#differential-forms
#classifying-spaces
34
Views
Compact submanifold of $S^n \times R^m$
Published on
16 Apr 2026 - 1:32
#general-topology
#differential-geometry
#differential-topology
#product-space
28
Views
Corollary of the Covering Homotopy Theorem
Published on
13 Apr 2026 - 22:45
#differential-geometry
#differential-topology
142
Views
Show $ M_1 \# M_2= U_1 \cup U_2 $ for some open subsets $U_i$ of manifolds $M_i$ such that the following properties hold.
Published on
23 Apr 2026 - 19:35
#general-topology
#manifolds
#differential-topology
#problem-solving
43
Views
Formalizing the basics of calculus by properties of graphs.
Published on
14 Apr 2026 - 14:49
#calculus
#general-topology
#differential-topology
88
Views
How to construct Morse function
Published on
08 Apr 2026 - 6:17
#algebraic-topology
#differential-topology
514
Views
Topology: crosscaps and handles
Published on
10 Apr 2026 - 15:38
#general-topology
#differential-geometry
#differential-topology
231
Views
K-theory proof of index theorem - some minor confusion
Published on
12 Apr 2026 - 8:57
#algebraic-topology
#differential-topology
#topological-k-theory
205
Views
(Topologically) different tangent bundles on the same manifold
Published on
15 Apr 2026 - 3:29
#differential-geometry
#differential-topology
#examples-counterexamples
#smooth-manifolds
#vector-bundles
83
Views
A question about maximum theorem
Published on
11 Apr 2026 - 12:43
#general-topology
#algebraic-topology
#differential-topology
#geometric-topology
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