nLab
identity 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

An identiy matrix is a diagonal matrix with all diagonal entries equal to the identity element 1R1 \in R of the ground ring.

The identiy matrices are the identity elements in their matrix algebra, whence the name.

References

See also

Created on November 9, 2019 at 06:06:32. See the history of this page for a list of all contributions to it.