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New posts in group-extensions
Splitting in Short exact sequence
abstract-algebra
group-extensions
Computing Group Extension and $2$-cocycle in GAP
group-cohomology
gap
group-extensions
Semidirect product: general automorphism always results in a conjugation
abstract-algebra
group-theory
semidirect-product
group-extensions
Classify all groups containing isomorphic copy of $\mathbb{Z}$ of index $2$.
abstract-algebra
group-theory
infinite-groups
group-extensions
Central extensions versus semidirect products
abstract-algebra
group-theory
semidirect-product
group-extensions
central-extensions
(finitely generated finite by abelian) implies (abelian by finite)
group-theory
finite-groups
abelian-groups
group-extensions
Non-Isomorphic Group Extensions
abstract-algebra
group-cohomology
group-extensions
What is the relation between semidirect products, extensions, and split extensions?
abstract-algebra
group-theory
semidirect-product
group-extensions
Showing the existence of an automorphism between two semidirect products
abstract-algebra
group-theory
group-homomorphism
semidirect-product
group-extensions
Lie Group Decomposition as Semidirect Product of Connected and Discrete Groups
group-theory
lie-groups
semidirect-product
group-extensions
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