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15
Math.TechQA.Club
2026-03-06 05:26:51
15
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smooth parametrized journey 3d representation of 4d dataset
Published on
06 Mar 2026 - 5:26
#data-analysis
#visualization
#projection
#stereographic-projections
#4-manifolds
744
Views
Prerequisite to study smooth 4-manifolds
Published on
22 Nov 2014 - 15:36
#reference-request
#soft-question
#4-manifolds
148
Views
Index of Dirac operator and Chern character of symmetric product twisting bundle
Published on
30 Jan 2020 - 6:58
#differential-geometry
#differential-topology
#characteristic-classes
#spin-geometry
#4-manifolds
153
Views
When is the orientable double cover of a product of non-orientable surfaces spin?
Published on
05 Mar 2026 - 2:10
#spin-geometry
#4-manifolds
#non-orientable-surfaces
81
Views
Spin connection on Ricci-flat anti-self-dual 4-manifolds
Published on
17 Mar 2020 - 20:53
#differential-geometry
#riemannian-geometry
#spin-geometry
#4-manifolds
57
Views
Small exotic $\mathbb{R}^4$'s with symmetries
Published on
16 Apr 2020 - 19:29
#differential-topology
#geometric-topology
#4-manifolds
49
Views
Combination of reflection symmetries in $\mathbb{E^4}$
Published on
16 Jun 2020 - 16:24
#euclidean-geometry
#rotations
#isometry
#reflection
#4-manifolds
416
Views
Differentiable structure on $S^4$
Published on
01 Jul 2020 - 8:59
#differential-geometry
#algebraic-topology
#differential-topology
#smooth-manifolds
#4-manifolds
506
Views
Euler characteristic zero but non-parallelizable four-dimensional manifold
Published on
22 Aug 2016 - 15:44
#differential-topology
#smooth-manifolds
#4-manifolds
190
Views
Books on the Riemannian geometry of four-manifolds
Published on
28 Aug 2016 - 12:49
#reference-request
#riemannian-geometry
#4-manifolds
518
Views
Relation between Pontryagin number and Euler number for a four-dimensional closed manifold
Published on
07 Nov 2016 - 19:13
#algebraic-topology
#characteristic-classes
#4-manifolds
196
Views
4-manifold with $w_1\neq 0$, $w_1^2=0$, $w_2\neq 0$
Published on
25 Dec 2016 - 16:41
#examples-counterexamples
#characteristic-classes
#4-manifolds
248
Views
Immersed surface in a 4-manifold that can no be homotoped to an embedded surface
Published on
18 Jan 2017 - 19:36
#manifolds
#geometric-topology
#4-manifolds
2.5k
Views
Uncountable differential structures on $4$-manifolds?
Published on
05 Feb 2017 - 6:05
#differential-topology
#smooth-manifolds
#4-manifolds
241
Views
Who invented special framed links as a way to specify four-manifolds?
Published on
19 Mar 2026 - 23:39
#manifolds
#math-history
#smooth-manifolds
#4-manifolds
#kirby-diagram
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