nLab minor

In mathematics and specifically in the field of algebra, the term minor can refer to

  1. a submatrix of a matrix,

  2. the determinant of a square submatrix of a matrix with entries in a commutative ring,

where the second meaning is a bit more standard.

There is a noncommutative analogue, namely the quasiminor, which is the quasideterminant of a square submatrix of a matrix with entries in a non-commutative ring.

Last revised on October 1, 2025 at 11:46:10. See the history of this page for a list of all contributions to it.