27 Answers votes newest views recent 2Prime-like elements of rings 13When k[G/H] is multiplicity free G module ? 9Are irreducible representations subrepresentations of a symmetric power representation? 3Conjugcy classes in GL(F_2) ? GL(F_q) 4The number of solutions of a matrix equation 10Does there exist a wide but not full abelian subcategory of an abelian category? 2Invertible matrix 1Analogon to Brauer characters, if K not algebraically closed 3Uniqueness of the rank of the core of a lattice 2Does every embedding of one unipotent group (over R) in another extend to an embedding of the respective upper triangular matrix groups? 2Combinatorics of folding digit strings 2Generating set of orthogonal matrix 2Triviality of SK_0(Lambda) for Lambda an order in a group algebra over a $p$-adic field 3Is the Brauer correspondence injective ? 3Does $S$ being a free rank-$n$ $R$-algebra imply that $S/R$ is free rank $n-1$? 2Tensor Products, Sub-Algebras, Sub-Modules, and Inclusions 5flatness condition for local noetherian ring without nilpotent elements 1Completing unimodular vectors with $3$ entries in $F_2[t]$ to a $3$ by $3$ matrix with determinant equal to $1.$ 7Diagonal invariants of the symmetric group on $k[X_1,X_2,…,X_n,Y_1,Y_2,…,Y_n]$ 3Coproduct on coordinate ring of finite algebraic group 3Are there n polynomials for which all intersection multiplicities are at least m? 1Maximal order in a central simple algebra 3heller functor of finite order 7Do real vectors attain matrix norms? 3Conjugacy for p-adic matrices of finite order II 2“Composition of Morita equivalences” or “Morita equivalence and the Nakayama functor” 8Why are Jucys-Murphy elements' eigenvalues whole numbers?