matrix algebra
Noun
Meaning
the part of algebra that deals with the theory of matrices
Source: WordNetSynonyms
Hypernyms
Examples
A central simple algebra over K is a matrix algebra over a (finite dimensional) division algebra with center K. For example, the central simple algebras over the reals are matrix algebras over either the reals or the quaternions.
Block matrix algebra relies upon biproducts in categories of matrices.
In this case, the spin group is isomorphic to the group of 2 2 unitary matrices with determinant one, which naturally sits inside the matrix algebra.