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15
Math.TechQA.Club
2026-03-25 16:03:33
411
Views
Collar neighborhoods of a topological manifold with boundary
Published on
25 Mar 2026 - 16:03
#general-topology
#algebraic-topology
#manifolds
#manifolds-with-boundary
#compact-manifolds
585
Views
If the Killing form of a Lie algebra is negative definite, then the Lie algebra is the Lie algebra of a compact semisimple Lie group?
Published on
25 Mar 2026 - 12:50
#lie-groups
#lie-algebras
#compactness
#compact-manifolds
52
Views
Is a pentagon a surface?
Published on
25 Mar 2026 - 12:52
#manifolds
#smooth-manifolds
#surfaces
#manifolds-with-boundary
#compact-manifolds
139
Views
The relationship between the tubular neighbourhoods of two diffeomorphic manifolds
Published on
25 Mar 2026 - 14:24
#differential-geometry
#manifolds
#fiber-bundles
#compact-manifolds
#diffeomorphism
27
Views
Can one characterize compact smooth manifolds dynamically as such?
Published on
25 Mar 2026 - 12:46
#dynamical-systems
#compact-manifolds
164
Views
Proof of classification theorem for compact surfaces
Published on
25 Mar 2026 - 14:19
#algebraic-topology
#compact-manifolds
171
Views
square root of a Riemannian metric
Published on
25 Mar 2026 - 12:52
#differential-geometry
#vector-fields
#compact-manifolds
820
Views
The Sobolev embedding inequality on manifolds
Published on
25 Mar 2026 - 12:55
#analysis
#differential-geometry
#riemannian-geometry
#sobolev-spaces
#compact-manifolds
118
Views
intersection number on the boundary of a manifold
Published on
25 Mar 2026 - 14:22
#manifolds
#smooth-manifolds
#intersection-theory
#manifolds-with-boundary
#compact-manifolds
422
Views
An orientable surface that cannot be embedded into $\Bbb R^3$?
Published on
10 May 2026 - 14:03
#manifolds
#surfaces
#orientation
#compact-manifolds
#non-orientable-surfaces
147
Views
Can all connected graphs be embedded on a closed, compact 2-Manifold?
Published on
25 Mar 2026 - 14:20
#graph-theory
#compact-manifolds
321
Views
Simplicial complexes embedded on a compact manifold
Published on
25 Mar 2026 - 12:52
#graph-theory
#riemannian-geometry
#simplicial-complex
#compact-manifolds
365
Views
What is the "natural homomorphism" in the definition of an *essential manifold*?
Published on
10 May 2026 - 15:10
#algebraic-topology
#homology-cohomology
#smooth-manifolds
#compact-manifolds
#eilenberg-maclane-spaces
234
Views
Compactification of log z Riemann Surface
Published on
25 Mar 2026 - 16:00
#complex-analysis
#logarithms
#compactness
#riemann-surfaces
#compact-manifolds
132
Views
Covering $\Bbb RP^\text{odd}\longrightarrow X$, what can be said about $X$?
Published on
25 Mar 2026 - 12:54
#algebraic-topology
#covering-spaces
#projective-space
#cw-complexes
#compact-manifolds
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