Tensor-triangulated categories with dualities

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63 pages

Theory and applications of categories, 22, 2009, p. 136-198
(1st online appearance of the preprint on the 3-6-2008)

MSC 2010: 11E70, 14F42, 18D10, 18D15, 19E08, 19D23

In a triangulated symmetric monoidal closed category, there are natural dualities induced by the internal Hom. Given a monoidal functor f* between two such catgories and adjoint couples (f*,f*) and (f*,f!), we prove the necessary commutative diagrams for f* and f* to respect certain dualities, for a projection formula to hold between them (as duality preserving functors) and for classical base change and composition formulas to hold when such duality preserving functors are composed. This framework is for example useful to define push-forwards for Witt groups.

This publication extends and generalizes the first part of the preprint Witt motives, transfers and dévissage.

mucha