covariant
adjective, noun
Forms covariants
- adjective (category theory, of a functor) Which preserves the order of morphism composition: formally, which associates each morphism f:X→Y to a morphism F(f):F(X)→F(Y).
- adjective (object-oriented programming) Using or relating to covariance.
- noun (algebra) A bihomogeneous polynomial in x, y, ... and the coefficients of some homogeneous form in x, y, ... that is invariant under some group of linear transformations.
- noun (algebra) The variety defined by a covariant.
Antonyms
Webster’s 1913
- noun A function involving the coefficients and the variables of a quantic, and such that when the quantic is lineally transformed the same function of the new variables and coefficients shall be equal to the old function multiplied by a factor. An invariant is a like function involving only the coefficients of the quantic.
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “covariant”, CC BY-SA 4.0. Details