List questions from differential-topology

Published on 13 Apr 2026 - 15:21

434

Views

Question about a smooth manifold on the unit circle

Published on 10 Apr 2026 - 7:33

75

Views

If there is a diffeomorphism from an open subset of $\mathbb R^d$ onto a submanifold $M$ of $\mathbb R^d$, then $M$ is open

Published on 27 Mar 2026 - 14:03

107

Views

The tangent space to the intersection is the intersection of the tangent spaces; A follow up.

Published on 15 Apr 2026 - 11:44

436

Views

Is the restriction of a diffeomorphism to a manifold $M$ an open map from $M$ to $M$?

Published on 16 Apr 2026 - 1:29

108

Views

Transversality and the hessian of critical ponint of a function

Published on 11 May 2026 - 9:09

80

Views

Homotopical Effects of Length and Energy Functional on The Loop Space

Published on 13 Apr 2026 - 5:34

1.4k

Views

Integration on manifolds vs. integration on chains

Published on 15 Apr 2026 - 8:30

381

Views

Confirming whether a vector field is inward/outward pointing

Published on 14 Apr 2026 - 20:20

103

Views

Smooth function extension

Published on 17 Apr 2026 - 11:10

675

Views

Smooth surjective map from torus to sphere

Published on 12 Apr 2026 - 12:57

105

Views

Closed Immersions are open in the strong topology $C_S^r(M,N)$

Published on 14 Apr 2026 - 8:08

96

Views

If $T_t$ is a flow and $M$ is a manifold with $T_t(\partial M)⊆\partial M$ for all $t$, we've already got $T_t(\partial M)=\partial M$ for all $t$

Published on 17 Apr 2026 - 2:20

104

Views

Milnor - Morse Theory, proof of Lemma 16.1

Published on 14 Apr 2026 - 22:18

221

Views

Extending injectivity of closed sets in injective immersions

Published on 09 Apr 2026 - 12:23

List Question

locally finite subset $A$ of a metric space

Question about a smooth manifold on the unit circle

If there is a diffeomorphism from an open subset of $\mathbb R^d$ onto a submanifold $M$ of $\mathbb R^d$, then $M$ is open

The tangent space to the intersection is the intersection of the tangent spaces; A follow up.

Is the restriction of a diffeomorphism to a manifold $M$ an open map from $M$ to $M$?

Transversality and the hessian of critical ponint of a function

Homotopical Effects of Length and Energy Functional on The Loop Space

Integration on manifolds vs. integration on chains

Confirming whether a vector field is inward/outward pointing

Smooth function extension

Smooth surjective map from torus to sphere

Closed Immersions are open in the strong topology $C_S^r(M,N)$

If $T_t$ is a flow and $M$ is a manifold with $T_t(\partial M)⊆\partial M$ for all $t$, we've already got $T_t(\partial M)=\partial M$ for all $t$

Milnor - Morse Theory, proof of Lemma 16.1

Extending injectivity of closed sets in injective immersions

Trending Questions

Popular # Hahtags

Popular Questions