Linear representations of algebras and groups, Lie theory, associative algebras, multilinear algebra.

**3**

**2**answers

### Generating Irreducible representations of a simple lie algebra with Schur functors

**1**

**1**answer

### references on group representation over local fields / a question on an argument of a Ralph Greenberg's paper

**3**

**1**answer

### Clebsch–Gordan decomposition for $\mathrm{SU}(2)$, in indices

**3**

**1**answer

### Higher Extension Group Question

**1**

**3**answers

### References request: representations of classical groups

**7**

**1**answer

### Finite group with a character having one nonzero absolute value

**3**

**1**answer

### Identity for $Ext^1$ for special algebras

**3**

**0**answers

### Geometric interpretation of duality for representations of reductive groups

**1**

**0**answers

### Reducibility of the Weil representation

**1**

**0**answers

### Indecomposable modules for the big quantum group

**1**

**0**answers

### Total number of extremal weights in irreps corresponding to fundamental weights equals total number of positive roots?

**4**

**1**answer

### Multiplicities in Plancherel theorem for SL2(R)

**9**

**0**answers

### cohomology of flag variety

**1**

**0**answers

### Some simple question of the base change of the unitary group to general linear group

**5**

**3**answers

### Irreducible representations and invariant subspaces

**12**

**2**answers

### What is a tensor category?

**0**

**0**answers

### Comments/references on an obscure category of “rudimentary representations”

**3**

**1**answer

### Invertible bimodules which are isomorphic in the stable module category

**2**

**0**answers

### local gamma factors and their compatibility with the local langlands correspondence

**5**

**1**answer

### Fell's trick for Lie groups

**5**

**0**answers

### Are the integral forms of quantized coordinate algebras always Noetherian?

**19**

**1**answer

### How do mathematicians and physicists think of SL(2,R) acting on Gaussian functions?

**1**

**0**answers

### Existence of a certain direct summand

**1**

**0**answers

### Is the root cone is contained in the weight cone?

**1**

**0**answers

### Errata for Casselman's unpublished notes

**6**

**1**answer

### Relationship between irreducible representations of the Schur covering group and elements of $H^2(G,U(1))$

**14**

**1**answer

### Equivariant Mobius inversion

**5**

**0**answers

### Restricting projective representations of Lie groups to lattices

**2**

**0**answers

### Definition 2.3 in Lusztig's “Character Sheaves I”

**4**

**2**answers

### $G\cong C_4\times A_5$ or $C_2\times C_2\times A_5$?

**2**

**1**answer

### $Ext_A^1(J,J)$ for the Jacobson radical $J$ of an algebra $A$

**6**

**0**answers

### Relation between Lie group characters and spherical functions on symmetric spaces

**1**

**0**answers

### Group schemes and Hyperspecial maximal compact subgroups

**7**

**0**answers

### On constructible Hall algebra and instantons

**5**

**0**answers

### Restriction of discrete series

**2**

**0**answers

### Two basic question on parabolic induction

**3**

**1**answer

### Testing whether a quiver algebra is cellular with a computer

**3**

**0**answers

### Some basic question on the parabolic induction

**7**

**0**answers

### Higher traces in Hochschild cohomology

**4**

**2**answers

### Weyl's Branching Rule for $SU(N)$-Setting

**4**

**0**answers

### Integral structures via lattices

**2**

**1**answer

### semisimple support of character sheaves

**9**

**0**answers

### Some question on the induced representation of tensor product

**4**

**0**answers

### Conjugacy class representatives for the automorphism group of a finite abelian group

**4**

**0**answers

### Good range and fair range

**10**

**0**answers

### Bernstein-Zelevinsky classification: viewing a representation as a subrepresentation or a quotient

**4**

**1**answer

### Minimum dimension of faithful representation of mapping class groups?

**7**

**0**answers

### A robust version of Schur's lemma?

**4**

**0**answers

### Modular $S$-matrix for an extended affine Lie algebra

**6**

**1**answer