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15
Math.TechQA.Club
2016-07-29 19:45:01
32
Views
Diffeomorphism between $S^n \backslash B_r(x)$ and some ball $B$ for arbitrary $x \in S^n$.
Published on
29 Jul 2016 - 19:45
#general-topology
#manifolds
#differential-topology
2k
Views
Is a tubular neighborhood always diffeomorphic to the whole normal bundle?
Published on
29 Jul 2016 - 22:33
#differential-geometry
#differential-topology
90
Views
Smoothing a $\mathcal{C}^1$-map preserving the bound on rank of derivative matrix.
Published on
27 Mar 2026 - 0:05
#functional-analysis
#differential-topology
#vector-analysis
#approximation-theory
945
Views
How to prove that composition of two $C^\infty$ fuctions is a $C^\infty$ function?
Published on
31 Jul 2016 - 18:48
#multivariable-calculus
#differential-topology
#partial-derivative
239
Views
Equivalence of topological and complex analytic definitions of degree of a line bundle.
Published on
28 Mar 2026 - 12:49
#algebraic-geometry
#algebraic-topology
#differential-topology
#complex-geometry
#riemann-surfaces
627
Views
Mobius strip to the Klein bottle
Published on
27 Mar 2026 - 7:52
#general-topology
#algebraic-topology
#differential-topology
#klein-bottle
#mobius-band
103
Views
"Fundamental Cube" for 3-Manifolds?
Published on
01 Aug 2016 - 18:31
#general-topology
#differential-geometry
#algebraic-topology
#differential-topology
187
Views
Regularity of the set of orbits through a submanifold under a tangential flow
Published on
01 Aug 2016 - 23:44
#differential-geometry
#manifolds
#differential-topology
#dynamical-systems
#smooth-manifolds
407
Views
Jordan curve theorem (Maehara's proof)
Published on
26 Mar 2026 - 20:44
#general-topology
#algebraic-topology
#differential-topology
#plane-curves
525
Views
How to understand immersed submanifold?
Published on
05 Aug 2016 - 10:17
#differential-geometry
#manifolds
#differential-topology
#lie-groups
#smooth-manifolds
104
Views
How to compute the cohomology $H^{*}(S^{n}, S^{k})$?
Published on
05 Aug 2016 - 20:17
#algebraic-topology
#differential-topology
#homology-cohomology
388
Views
Are $C^r$ diffeomorphisms between $C^r$ manifolds always smooth?
Published on
07 Aug 2016 - 23:09
#differential-topology
1.1k
Views
Problem 5 of Milnor's "Topology From The Differentiable Viewpoint"
Published on
08 Aug 2016 - 1:33
#differential-topology
199
Views
Why is this map transversal
Published on
08 Aug 2016 - 18:28
#differential-topology
1.4k
Views
Differential of the flow of a vector field
Published on
06 Apr 2026 - 3:44
#differential-geometry
#differential-topology
#riemannian-geometry
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