covariant

English

Etymology

From co- +‎ variant.

Pronunciation

• Audio (US):

  (file)

Adjective

covariant (not comparable)

1. (category theory, of a functor) Which preserves the order of morphism composition: formally, which associates each morphism ${\displaystyle f:X\to Y}$ to a morphism ${\displaystyle F(f):F(X)\to F(Y)}$.

   Antonym: contravariant

2. (object-oriented programming) Using or relating to covariance.

Derived terms

• bicovariant
• covariantisation
• covariantization
• covariantize
• covariantly
• Frobenius covariant
• noncovariant
• semicovariant
• supercovariant

Translations

which preserves composition

Finnish: kovariantti French: covariant (fr) German: kovariant Hindi: सहपरिवर्ती (sahaprivartī) Portuguese: covariante

relating to covariance

Finnish: kovariantti French: covariant (fr) German: kovariant Hindi: सहपरिवर्ती (sahaprivartī)

Noun

covariant (plural covariants)

1. (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.
2. (algebra) The variety defined by a covariant.

Translations

bihomogeneous polynomial...

Hindi: सहपरिवर्ती (sahaprivartī)

variety defined by a covariant

Hindi: सहपरिवर्ती (sahaprivartī)

Romanian

Etymology

Borrowed from French covariant.

Noun

covariant n (plural covariante)

1. covariant

Declension

Declension of covariant

	singular			plural
	indefinite	definite		indefinite	definite
nominative-accusative	covariant	covariantul		covariante	covariantele
genitive-dative	covariant	covariantului		covariante	covariantelor
vocative	covariantule			covariantelor

References

• covariant in Academia Română, Micul dicționar academic, ediția a II-a, Bucharest: Univers Enciclopedic, 2010. →ISBN