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15
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Localisation with respect to $H \mathbb{Q}$

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#homotopy-theory #localization #stable-homotopy-theory
314
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Why is $BGL(R)^+$ an $H$-space?

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#reference-request #algebraic-topology #homotopy-theory #algebraic-k-theory
69
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The semigroup of vector bundles by gluing of contractible patches

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#homotopy-theory #vector-bundles #k-theory #topological-k-theory
513
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Orbit space isomorphic to Klein bottle

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#algebraic-topology #homotopy-theory #covering-spaces #compact-manifolds
329
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Homotopic equivalence $\iff$ Covering map?

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#algebraic-topology #homotopy-theory #covering-spaces
212
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Action of a loopspace on a fiber?

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#algebraic-topology #homotopy-theory
251
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On the weak equivalence axiom for non-CW spaces

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#general-topology #algebraic-topology #homology-cohomology #homotopy-theory
268
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Finite generatedness of homotopy groups of a Lie group

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#algebraic-topology #differential-topology #lie-groups #homotopy-theory
313
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deformation retract of contractible spaces

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#general-topology #algebraic-topology #homotopy-theory #geometric-topology #retraction
136
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deformation retract from the standard $k$-cube to a nonempty, locally connected, closed, and contractible subset

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#general-topology #algebraic-topology #homotopy-theory #geometric-topology #retraction
87
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closed and contractible regions in Euclidean cubes

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#general-topology #algebraic-topology #manifolds #homotopy-theory #geometric-topology
139
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Higher homotopy of wedges of CW-complexes

Published on
#algebraic-topology #homotopy-theory
307
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Homotopy of a path with different parametrization

Published on
#algebraic-topology #homotopy-theory
209
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Prove that a homomorphism induced by a retraction is onto.

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#algebraic-topology #homotopy-theory
1.4k
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What, exactly, is the fundamental group of a free loop space?

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#algebraic-topology #homotopy-theory

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