Newbetuts
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New posts in representation-theory
A problem of central simple algebras: why $(E,s,\gamma)\cong M_n(F)$ only if $\gamma$ is the norm of an element of $E$?
abstract-algebra
ring-theory
representation-theory
noncommutative-algebra
semi-simple-rings
Theorem 1 chapter 8 of Fulton's Young Tableaux
combinatorics
representation-theory
young-tableaux
Reciprocity for branching rules of $\mathrm{GL}_n(\mathbb C)$
representation-theory
lie-groups
branching-rules
Serre's surjective theorem importance.
number-theory
representation-theory
galois-theory
Generalizing Determinants Through Multilinear Algebra and Immanants
linear-algebra
abstract-algebra
soft-question
representation-theory
multilinear-algebra
Representation theory of $SO(n)$
reference-request
lie-groups
representation-theory
lie-algebras
Lie algebra action from Lie group action: coordinates
representation-theory
lie-algebras
manifolds
The unique closed orbit in GIT quotient fibers for polynomial actions of Gl
algebraic-geometry
representation-theory
group-actions
invariant-theory
geometric-invariant-theory
What changes in the representation theory of real Lie algebras?
representation-theory
lie-groups
lie-algebras
Intuition Behind Homomorphisms of Representations
abstract-algebra
representation-theory
The Noether-Deuring Theorem
field-theory
representation-theory
modules
Show that the representation $\mathbb Z\ni a\mapsto\begin{pmatrix}1& a\\0&1\end{pmatrix}$ is not completely reducible
matrices
finite-groups
representation-theory
Compatibility of two definitions of the projective class group of a group ring
number-theory
modules
representation-theory
algebraic-number-theory
What is the *real* representation theory of $SO(3)$?
representation-theory
Tannakian theory for Lie algebras
category-theory
representation-theory
algebraic-groups
Centralizer of one element on a compact connected Lie group
differential-geometry
representation-theory
lie-groups
Dimension of the space of algebraic Riemann curvature tensors
linear-algebra
combinatorics
differential-geometry
representation-theory
Prove that the augmentation ideal in the group ring $\mathbb{Z}/p\mathbb{Z}G$ is a nilpotent ideal ($p$ is a prime, $G$ is a $p$-group)
abstract-algebra
ring-theory
finite-groups
representation-theory
group-rings
"Tensor complement" of representations of finite groups
finite-groups
representation-theory
Does every irreducible representation of a compact group occur in tensor products of a faithful representation (and its dual)?
representation-theory
lie-groups
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