Contents

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Contents

Idea

A square matrix is an $n \times m$-matrix for $n = m$.

Under matrix multiplication the $n \times n$ square matrices for fixed $n \in \mathbb{N}$ with values in some commutative ring $R$ form the matrix algebra $Mat_n(R)$, inside which one finds matrix groups etc.

Properties

Gershgorin circle theorem

See at Gershgorin circle theorem.

Last revised on October 19, 2022 at 07:20:33. See the history of this page for a list of all contributions to it.