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15
Math.TechQA.Club
2026-03-22 08:53:49
1.8k
Views
A local diffeomorphism can map a boundary point to an interior point
Published on
22 Mar 2026 - 8:53
#differential-geometry
#differential-topology
#smooth-manifolds
#manifolds-with-boundary
432
Views
Is a map with invertible differential that maps boundary to boundary a local diffeomorphism?
Published on
22 Mar 2026 - 6:05
#differential-geometry
#differential-topology
#smooth-manifolds
#manifolds-with-boundary
105
Views
Does smoothness on the interior and on the boundary (separately) imply smoothness?
Published on
22 Mar 2026 - 12:51
#differential-geometry
#differential-topology
#smooth-manifolds
#manifolds-with-boundary
#singularity
439
Views
Submersion Theorem for manifold with boundary
Published on
22 Mar 2026 - 12:27
#differential-geometry
#manifolds-with-boundary
125
Views
Mobius band gluing construction
Published on
25 Mar 2026 - 9:34
#general-topology
#geometry
#manifolds
#manifolds-with-boundary
#mobius-band
301
Views
Long exact sequence for manifolds with boundary
Published on
22 Mar 2026 - 8:25
#algebraic-topology
#manifolds
#geometric-topology
#manifolds-with-boundary
326
Views
Does Stokes hold? (Manifolds)
Published on
22 Mar 2026 - 12:51
#manifolds
#smooth-manifolds
#stokes-theorem
#manifolds-with-boundary
379
Views
Manifolds with boundaries and partitions of unity
Published on
26 Mar 2026 - 6:29
#manifolds
#smooth-manifolds
#orientation
#manifolds-with-boundary
434
Views
Is the boundary of every 2-manifold the disjoint union of circles?
Published on
25 Mar 2026 - 14:25
#general-topology
#manifolds
#compact-manifolds
#manifolds-with-boundary
216
Views
Is there any necessarily NON-simply-connected bordism between compact 1-manifolds?
Published on
25 Mar 2026 - 17:39
#algebraic-topology
#differential-topology
#compact-manifolds
#manifolds-with-boundary
#cobordism
515
Views
There is no diffeomorphism between one quadrant in the plane and the half plane
Published on
22 Mar 2026 - 7:24
#multivariable-calculus
#differential-topology
#smooth-manifolds
#manifolds-with-boundary
275
Views
A problem about diffeomorphism of two components of the boundary of a manifold.
Published on
25 Mar 2026 - 16:13
#smooth-manifolds
#morse-theory
#manifolds-with-boundary
#cobordism
75
Views
Why are those two manifolds with boundary diffeomorphic to $D^2\times S^1$?
Published on
22 Mar 2026 - 10:31
#differential-geometry
#manifolds
#manifolds-with-boundary
506
Views
Is there a (what is the) intrinsic definition of boundary?
Published on
21 Mar 2026 - 23:10
#general-topology
#differential-geometry
#manifolds-with-boundary
306
Views
Manifold with boundary and boundary points?
Published on
21 Mar 2026 - 23:13
#proof-verification
#manifolds-with-boundary
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