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New posts in group-theory
Expression for normal product similar to semidirect product
group-theory
Cayley tables and associativity [duplicate]
group-theory
semigroups
associativity
magma
Why is the conjugacy class of an element in a symmetric group the same as the set of all elements with the same cycle type?
group-theory
symmetric-groups
Continuous functions between p-adic numbers [closed]
group-theory
p-adic-number-theory
continuous-homomorphisms
These two group theory statements are "the same"?
abstract-algebra
group-theory
Residual Finiteness of Fundamental Groups of Seifert Fibered Spaces
group-theory
algebraic-topology
manifolds
Can $\mathrm{PGL}_2$ be viewed as an affine algebraic group?
group-theory
algebraic-groups
Is the group $U(8)$ cyclic?
abstract-algebra
group-theory
Where is the symmetric group hidden in the Yoneda lemma?
group-theory
category-theory
abstract-algebra
Is a subgroup of a topological group a topological group?
general-topology
group-theory
topological-groups
Determining all Sylow $p$-subgroups of $S_n$ up to isomorphism?
abstract-algebra
group-theory
finite-groups
The multiplicative groups $\mathbb{Q}^\ast$ and $\mathbb{R}^\ast$ are not isomorphic [duplicate]
group-theory
alternative-proof
group-isomorphism
How can SU(2) group has 3 dimensional representation?
group-theory
representation-theory
Do both versions (invariant and primary) of the Fundamental Theorem for Finitely Generated Abelian Groups hold at the same time?
abstract-algebra
group-theory
ring-theory
modules
abelian-groups
Homology group of $X=\operatorname{SL}(2,\mathbb{R})/\operatorname{SL}(2,\mathbb{Z})$
abstract-algebra
group-theory
algebraic-topology
manifolds
homology-cohomology
Presentation of $D_{2n}$
abstract-algebra
group-theory
Purpose of cusps
group-theory
elliptic-curves
modular-forms
p-adic numbers and group characters
group-theory
characters
Prove $S_4$ has only 1 subgroup of order 12
group-theory
symmetric-groups
permutations
Group homomorphisms and which of the following statements are true (NBHM-$2014$)
abstract-algebra
group-theory
finite-groups
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