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15
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$V = W \cap W^{-1}$ a symmetric neighborhood such that $V\cdot V \subset U$.

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#general-topology #group-theory #topological-groups
147
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Compact (embedded) surface

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#general-topology #differential-topology #topological-groups #minimal-surfaces
168
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Parallel planes of minimal surface

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#riemannian-geometry #topological-groups #geometric-topology #minimal-surfaces #topological-graph-theory
304
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Proving connectedness of a topological group using identity component

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#general-topology #group-theory #metric-spaces #connectedness #topological-groups
21
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Some statements I do not understand when studying topological groups (specifically Korovin functions)

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#topological-groups
425
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Intersections of all neighbourhoods of $0$ in a topological group is a subgroup

Published on
#commutative-algebra #topological-groups
363
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Projective limits of compact groups

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#algebraic-geometry #algebraic-number-theory #homological-algebra #topological-groups
795
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Existence of isometry-invariant measures

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#measure-theory #metric-spaces #topological-groups #haar-measure #borel-measures
120
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Inducing an embedding from a continuous and free group action

Published on
#general-topology #topological-groups
65
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How is $\mathbb R$ with the usual addition and the Euclidean topology a topological group?

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#general-topology #topological-groups
80
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HNN embedding theorem for countable groups not preserving amenability

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#abstract-algebra #group-theory #topological-groups #amenability
930
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How can I show the action of left translation by a topological group $G$ on itself is a continuous action using the ordinary definition of continuity?

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#general-topology #continuity #proof-writing #group-actions #topological-groups
141
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Ergodicity of surjective continuous endomorphism of compact abelian group

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#general-topology #topological-groups #ergodic-theory #characters
219
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Homotopy between $a^{-1}$ and $a^*$ in topological group.

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#algebraic-topology #homotopy-theory #topological-groups
364
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Proof that $\text{Diff}(M)$ is a topological group

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#smooth-manifolds #topological-groups #diffeomorphism

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