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15
Math.TechQA.Club
2026-03-27 19:30:06
61
Views
Basic Lie group Theory
Published on
27 Mar 2026 - 19:30
#group-theory
#lie-groups
#smooth-manifolds
#topological-groups
68
Views
Proof that two charts on the tangent bundle $TM$ are $C^\infty(M)$-compatible
Published on
25 Mar 2026 - 13:53
#differential-geometry
#smooth-manifolds
#smooth-functions
#tangent-bundle
88
Views
Local diffeomorphism between a disk and a sphere
Published on
25 Mar 2026 - 19:01
#smooth-manifolds
#surfaces
#smooth-functions
#diffeomorphism
341
Views
Christoffel symbols, dual space
Published on
26 Mar 2026 - 18:29
#differential-geometry
#smooth-manifolds
#connections
369
Views
When do (pointwise) non-zero differential forms have non-zero de Rham cohomology?
Published on
27 Mar 2026 - 0:56
#differential-topology
#smooth-manifolds
#de-rham-cohomology
372
Views
Why $x$ has superscript $i$ in the expression $\partial/\partial x^i$ (Differential Geometry)?
Published on
30 Mar 2026 - 8:26
#differential-geometry
#notation
#smooth-manifolds
#tensors
175
Views
Construct interior chart of a manifold boundary $\partial M$ from a boundary chart of the manifold $M$
Published on
25 Mar 2026 - 15:43
#differential-geometry
#manifolds
#smooth-manifolds
#manifolds-with-boundary
#submanifold
200
Views
Equivariant rank theorem.
Published on
27 Mar 2026 - 0:25
#smooth-manifolds
#group-actions
#equivariant-maps
102
Views
Show an identity for the Laplace-Beltrami operator
Published on
26 Mar 2026 - 3:11
#differential-geometry
#smooth-manifolds
#laplacian
#manifolds-with-boundary
#tangent-spaces
56
Views
Is the inverse of an interior chart of a submanifold an immersion?
Published on
25 Mar 2026 - 15:42
#differential-geometry
#smooth-manifolds
#frechet-derivative
#diffeomorphism
#submanifold
369
Views
Is Gauss map a diffeomorphism onto its image in this case?
Published on
25 Mar 2026 - 19:03
#riemannian-geometry
#smooth-manifolds
#surfaces
#curvature
#diffeomorphism
322
Views
Alternate definition for differential form on smooth manifold
Published on
01 Apr 2026 - 10:02
#differential-geometry
#manifolds
#smooth-manifolds
#differential-forms
115
Views
Show this identity for the surface measure on the boundary of a submanifold
Published on
25 Mar 2026 - 15:42
#differential-geometry
#smooth-manifolds
#geometric-measure-theory
#manifolds-with-boundary
#submanifold
81
Views
The Euclidean metric after the mapping $f:\Bbb R^2 \to \Bbb R^{2+}$ with $f(x,y)=(e^x,e^y),$ is what?
Published on
11 Jul 2020 - 22:00
#differential-geometry
#metric-spaces
#manifolds
#euclidean-geometry
#smooth-manifolds
218
Views
Find a specific countable atlas for a smooth submanifold with boundary
Published on
25 Mar 2026 - 15:40
#differential-geometry
#smooth-manifolds
#manifolds-with-boundary
#submanifold
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