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adj. Physics Expressing, exhibiting, or relating to covariant theory.

adj. Statistics Varying with another variable quantity in a manner that leaves a specified relationship unchanged.

adj. (Of a functor) which preserves composition

adj. Using or relating to covariance.

n. 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.

n. In mathematics, a function which stands in the same relation to the primitive function from which it is derived as any of its linear transforms to a similarly derived transform of its primitive; a function of the coefficients and variables of a given quantic, such that when the quantic is linearly transformed, the same function of the new variables and coefficients is equal to the old function multiplied by some power of the modulus of transformation. Covariants were discovered by Cayley, and so named by Sylvester, 1852.

adj. changing so that interrelations with another variable quantity or set of quantities remain unchanged

"Over the previous year, he had been determined to find a gravitation theory that was generally covariant, that is, whose equations were unchanged by arbitrary transformation of the spacetime coordinates."

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