adj

• (mathematics) Used in certain contexts, in each case involving a pair of transformations, one of which is, or is analogous to, conjugation (either inner automorphism or complex conjugation).
• (mathematics, category theory, of a functor) That is related to another functor by an adjunction.
• (geometry, of one curve to another curve) Having a relationship of the nature of an adjoint (adjoint curve); sharing multiple points with.
  "The sets A + A₀, B + B₀, together, form the complete intersection, with f = 0, of a composite adjoint curve of order m + k, consisting of the adjoint curve of order m through A + B, together with the non-adjoint curve ω = 0; and the set B + B₀ consists of p points, and lies on i + j adjoint φ-curves of f = 0."

noun

• (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.