adjoint

(mathematics) The transpose of the cofactor matrix of a given square matrix.

(mathematics, linear algebra, of a matrix) Transpose conjugate.

(mathematics, mathematical analysis, of an operator) Hermitian conjugate.

(mathematics, category theory) A functor related to another functor by an adjunction.

(geometry, algebraic geometry) A curve A such that any point of a given curve C of multiplicity r has multiplicity at least r–1 on A. Sometimes the multiple points of C are required to be ordinary, and if this condition is not satisfied the term sub-adjoint is used.

An assistant to someone who holds a position in the military or civil service.

An assistant mayor of a French commune.