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Suspension Operation on the Pontryagin-Thom Construction

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#differential-topology #homotopy-theory #cobordism
62
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Rigidity in the monoidal cobordism category

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#manifolds #differential-topology #dual-spaces #monoidal-categories #cobordism
225
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What is the zipper?

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#general-topology #soft-question #differential-topology #cobordism #topological-quantum-field-theory
48
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Inclusion of a punctured disk inside a cylinder with the strings cut off.

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#algebraic-topology #homology-cohomology #knot-theory #cobordism
107
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A non modern theory of generalized Thom spectra

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#reference-request #cobordism #stable-homotopy-theory #spectra
51
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Smooth functions defined on connected sums

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#differential-topology #smooth-manifolds #manifolds-with-boundary #smooth-functions #cobordism
71
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all unoriented bordism groups are $\mathbb{Z}/2$s

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#differential-geometry #algebraic-topology #differential-topology #geometric-topology #cobordism
40
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Quadratic enhancements of the intersection form and spin structures

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#algebraic-topology #homology-cohomology #geometric-topology #spin-geometry #cobordism
98
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$\mathbf{RP}^m \times \mathbf{RP}^n$ bounds a $(m+n+1)$-d manifold?

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#general-topology #algebraic-topology #manifolds #geometric-topology #cobordism
157
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Lifting a map to a homeomorphism of coverings

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#algebraic-topology #geometric-topology #knot-theory #cobordism
64
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Need help understanding the existence of a projection map $pr_2:M \wedge X_+ \rightarrow X$

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#general-topology #algebraic-topology #homotopy-theory #cobordism
3.3k
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Why care about homotopy equivalence up to $\vee S^2$ or $\# (S^2 \times S^2)$?

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#general-topology #algebraic-topology #manifolds #differential-topology #cobordism
103
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Elementary Morse Cobordism of Diffeomorphic Boundary Components

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#differential-topology #morse-theory #cobordism #surgery-theory
148
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Embedded null-homologous circle in high dimension is bound by disc

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#geometry #algebraic-topology #homology-cohomology #cobordism
144
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Milnor's Lectures on h-cobordism theorem: Lemma 6.2

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#differential-topology #morse-theory #cobordism #surgery-theory

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