On Deligne's periods for tensor product motives

Abstract

In this paper, we give a description of Deligne's periods $c^{\pm }$ for tensor product of pure motives $M\otimes M^{\prime }$ over $\mathbb{Q}$ in terms of the period invariants attached to $M$ and $M^{\prime }$ by Yoshida. The period relations proved by the author and Raghuram in an earlier paper follow from the results of this paper.

6 pages, published in Comptes rendus - Mathématique in January 2015. Formerly appendix to arXiv1312.5955

Cited by in corpus (1)

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