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New posts in algebraic-topology
Is the homotopy type of an aspherical space determined by its fundamental group?
algebraic-topology
fundamental-groups
Is the canonical $(n-1)$-plane bundle over the deleted total space of an orientable $n$-plane bundle orientable?
algebraic-topology
vector-bundles
characteristic-classes
Covering spaces of $S^1 \vee S^1$.
abstract-algebra
general-topology
algebraic-topology
geometric-topology
fundamental-groups
$S^n$ is not homotopy equivalent to any subspace $\mathbb{R}^n$ [duplicate]
algebraic-topology
homology-cohomology
homotopy-theory
Research level algebraic topology
reference-request
algebraic-topology
book-recommendation
research
Finding the fundamental group of the complement of a certain graph
algebraic-topology
Does smashing always increase the connectivity of a space?
algebraic-topology
homotopy-theory
What is the gender of $K(\pi,n)$ in French?
algebraic-topology
notation
terminology
mathematical-french
Closed $n$ cell and Hausdorff property proof
general-topology
algebraic-topology
Transition functions for the tautological bundle
algebraic-topology
Atiyah K-theory
algebraic-topology
vector-bundles
topological-k-theory
The fundamental group of a compact, locally simply connected space is finitely generated
general-topology
algebraic-topology
homotopy-theory
Identifying a $\Delta$ complex
algebraic-topology
Covering space is a fiber bundle
algebraic-topology
Geometric reason as to why $H^2$ of the Klein bottle is $\mathbb{Z}/2\mathbb{Z}$?
abstract-algebra
general-topology
algebraic-topology
Abelianization of free product is the direct sum of abelianizations [duplicate]
abstract-algebra
group-theory
algebraic-topology
free-groups
free-product
When van Kampen Fails
algebraic-topology
fundamental-groups
Can the fundamental group and homology of the line with two origins be computed as a direct limit?
general-topology
algebraic-topology
quotient-spaces
fundamental-groups
limits-colimits
Visualising regular CW complex
algebraic-topology
Is there a “spanning simplex” method to calculate homology of low dimensional simplicial complexes?
combinatorics
algebraic-topology
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