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15
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$Ext(-,\mathbb Z)$ for profinite (Galois) groups

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#galois-theory #homological-algebra #profinite-groups
407
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Profinite completions and inverse limits

Published on
#commutative-algebra #profinite-groups
361
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Relation between profinite abelian groups and $\hat{\Bbb{Z}}$ modules

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#group-theory #modules #abelian-groups #profinite-groups
416
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Infinite Cyclotomic Extension of $\mathbb{Q}$

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#field-theory #galois-theory #profinite-groups
307
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Question about why inertia subgroup is a closed subgroup of the Galois group

Published on
#number-theory #galois-theory #algebraic-number-theory #local-field #profinite-groups
172
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Conjugate subgroups in inverse limit of groups

Published on
#group-theory #profinite-groups
150
Views

$H^1(G, \mathbb{Z}/p \mathbb{Z})$ and linearly independent elements in open subgroups.

Published on
#group-cohomology #profinite-groups #galois-cohomology
170
Views

Example Powerful Pro-$p$-Groups

Published on
#profinite-groups #pro-p-groups
187
Views

Profinite completion of integers

Published on
#abstract-algebra #group-theory #profinite-groups
376
Views

Every profinite group is naturally an affine group scheme over $\mathbb Q$?

Published on
#commutative-algebra #profinite-groups #group-schemes
666
Views

The image of an Artin representation is finite

Published on
#abstract-algebra #group-theory #representation-theory #profinite-groups
116
Views

Dense abstract free subgroups in a free profinite group

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#group-theory #profinite-groups
95
Views

Can $\mathrm{Aut}(\Bbb C)$ be turned into a profinite group?

Published on
#abstract-algebra #field-theory #galois-theory #profinite-groups
452
Views

Abelianization of free profinite group

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#group-theory #free-groups #profinite-groups
327
Views

Profinite group isomorphic to its completion

Published on
#profinite-groups

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