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15
338
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Homology of a simplicial complex union a simplex

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#algebraic-topology #homology-cohomology #simplicial-complex
84
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Property of a point in a finite simplicial 3-complex

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#general-topology #simplicial-complex
77
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A non-polyhedral pair $(X,A)$ with both $X$ and $A$ polyhedral

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#general-topology #algebraic-topology #simplicial-complex
727
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Homology groups with different complexes

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#algebraic-topology #homology-cohomology #cw-complexes #simplicial-complex
418
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Generalising dual triangulation of manifolds

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#manifolds #simplicial-complex #poincare-duality #configuration-space
847
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Barycentric subdivision preserves geometric realization

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#algebraic-topology #homology-cohomology #simplex #simplicial-complex
177
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Relation between the number of facets and of free faces

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#simplicial-complex
118
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Existence of a type of simplicial complex

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#algebraic-topology #homology-cohomology #simplicial-complex
885
Views

Why is induced map on zero homology the identity and not negative the identity?

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#algebraic-topology #homology-cohomology #homological-algebra #simplicial-stuff #simplicial-complex
64
Views

Do subspaces of polyhedron give subcomplexes?

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#general-topology #algebraic-topology #simplicial-complex
244
Views

Simplicial and De Rham Homology on Manifolds

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#homology-cohomology #simplicial-complex #de-rham-cohomology
330
Views

Finite Simplicial Complexes: Show that open sets have open connected subsets containing any point

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#algebraic-topology #simplicial-complex
324
Views

How to systematically collapse a $n$-simplex to a point via elementary collapses

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#algebraic-topology #homotopy-theory #simplicial-complex
128
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Necessary and sufficient condition for simplicial complex to be subspace

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#general-topology #simplicial-complex
111
Views

Free faces in $M_\kappa$ polyhedral complexes.

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#group-theory #geometry #metric-spaces #simplicial-complex #metric-geometry

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