nLab
diagonal matrix

Contents

Context

Linear algebra

homotopy theory, (∞,1)-category theory, homotopy type theory

flavors: stable, equivariant, rational, p-adic, proper, geometric, cohesive, directed

models: topological, simplicial, localic, …

see also algebraic topology

Introductions

Definitions

Paths and cylinders

Homotopy groups

Basic facts

Theorems

Contents

Idea

A square matrix (A x,y)Mat n×n(R)(A_{x,y})\in Mat_{n \times n}(R) whose values for xyx\neq y are all zero is called a diagonal matrix.

Properties

Diagonal matrices form the center of the ring of matrices under matrix multiplication.

References

See also

Last revised on October 21, 2018 at 09:39:00. See the history of this page for a list of all contributions to it.