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15
Math.TechQA.Club
2026-03-25 16:08:39
58
Views
Is there an intuitive way to see why $\mathbb{P}^2$ is non-orientable?
Published on
25 Mar 2026 - 16:08
#smooth-manifolds
#non-orientable-surfaces
117
Views
The pushforward of transition function of an orientable Riemannian manifold is in $SO(n)$?
Published on
25 Mar 2026 - 6:24
#riemannian-geometry
#smooth-manifolds
#pushforward
818
Views
Smooth covering maps and the fundamental group
Published on
25 Mar 2026 - 23:09
#differential-geometry
#smooth-manifolds
#covering-spaces
#automorphism-group
35
Views
Calculate the integral over a surface.
Published on
30 Mar 2026 - 7:06
#vector-analysis
#smooth-manifolds
363
Views
Left translation on Lie group of a discrete subgroup is properly discontinuous
Published on
30 Mar 2026 - 8:33
#differential-geometry
#algebraic-topology
#differential-topology
#lie-groups
#smooth-manifolds
262
Views
Topological invariance of compactly supported de Rham cohomology
Published on
26 Mar 2026 - 12:54
#differential-geometry
#differential-topology
#smooth-manifolds
#differential-forms
#de-rham-cohomology
524
Views
Determining the linear independence of tangent vectors at a point on the manifold
Published on
25 Mar 2026 - 3:03
#differential-topology
#smooth-manifolds
#tangent-bundle
#smooth-functions
#tangent-spaces
57
Views
Stiefel-Whitney numbers of exotic differentiable structures
Published on
25 Mar 2026 - 19:04
#differential-topology
#smooth-manifolds
#characteristic-classes
536
Views
Stiefel-Whitney numbers of manifolds that are boundaries of non-smoothable manifolds
Published on
25 Mar 2026 - 12:50
#differential-topology
#smooth-manifolds
#characteristic-classes
#cobordism
44
Views
Question related to orientation on a arbitrary oriented manifold
Published on
25 Mar 2026 - 12:55
#differential-geometry
#manifolds
#smooth-manifolds
#differential-forms
#orientation
97
Views
Are real linear maps of smooth sections locally determined?
Published on
26 Mar 2026 - 22:53
#differential-geometry
#manifolds
#differential-topology
#smooth-manifolds
#vector-bundles
62
Views
The existence of a smooth vector field locally
Published on
27 Mar 2026 - 6:10
#differential-geometry
#smooth-manifolds
#vector-fields
87
Views
Please explain the repeated gradient of a function on manifold.
Published on
29 Mar 2026 - 14:28
#geometry
#differential-geometry
#manifolds
#riemannian-geometry
#smooth-manifolds
331
Views
Are algebraic groups defined over $\mathbb{R}$ Lie groups?
Published on
25 Mar 2026 - 20:33
#algebraic-geometry
#lie-groups
#smooth-manifolds
#algebraic-groups
68
Views
$(0,3)$ as a non-Hausdorff smooth manifold
Published on
30 Mar 2026 - 23:11
#general-topology
#manifolds
#smooth-manifolds
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