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Are the horizontal and vertical subbundle preserved under isometry?

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#differential-geometry #manifolds #riemannian-geometry #geometric-topology #tangent-bundle
271
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Rigorous proof for a ray intersecting the boundary in a convex compact set in exactly one point.

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#general-topology #geometry #geometric-topology #topological-vector-spaces #convex-hulls
74
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How to visualize these shapes $\#^k(S^2 \times S^2)$?

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#geometric-topology #4-manifolds
286
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How many differentiable structures on a lie group?

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#differential-geometry #algebraic-topology #lie-groups #differential-topology #geometric-topology
123
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Clarifications on Thomassen's proof of Jordan's Curve Theorem

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#general-topology #graph-theory #geometric-topology #low-dimensional-topology
152
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Understanding $S^{2}\times S^{1}$ as a reduction of $SU(2)\times U(1)$ by $U(1)$

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#algebraic-topology #smooth-manifolds #topological-groups #geometric-topology
111
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Reference for Familiar Facts from Geometric Topology, Triangulation of Compact 2-Manifolds

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#general-topology #geometric-topology #low-dimensional-topology
120
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Prove a ball is open

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#linear-algebra #general-topology #multivariable-calculus #geometric-topology
189
Views

Ricci flow that expands the negative curvature part of the manifold and contracts the positive curvature part?

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#differential-geometry #riemannian-geometry #differential-topology #geometric-topology #curvature
725
Views

Definition and properties of a half-space

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#real-analysis #general-topology #geometry #measure-theory #geometric-topology
91
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Regular neighborhood of a connected, compact, orientable surface with boundary in $S^3$

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#geometric-topology #knot-theory #low-dimensional-topology
81
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Maps between projective planes inducing the isomorphism of fundamental groups

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#algebraic-topology #surfaces #geometric-topology
71
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Collarable and tame open manifolds

Published on
#manifolds #geometric-topology
128
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Is a $PL$-manifold necessarily a pure simplicial complex?

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#general-topology #algebraic-topology #manifolds #geometric-topology #simplicial-complex
160
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Quotient group of $S^3$ by a cyclic group is always a lens space

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#general-topology #algebraic-topology #lie-groups #group-actions #geometric-topology

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