Abstract
Let F be an infinite field of characteristic p different from 2 and let E be the Grassmann algebra generated by an infinite dimensional vector space L over F. In this paper we provide, for any odd prime q, a finite basis for the Tq-ideal of the Zq-graded polynomial identities for E and a basis for the Tq-space of graded central polynomials for E, for any Zq-grading on E such that L is homogeneous in the grading. Moreover, we prove that the set of all graded central polynomials of E is not finitely generated as a Tq-space, if p>2. In the non-homogeneous case such bases are also described when at least one non-neutral component has infinite many homogeneous elements of the basis of L in the respective grading.
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