English

Tensor-triangulated categories and dualities

Category Theory 2010-04-07 v1 K-Theory and Homology

Abstract

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.

Keywords

Cite

@article{arxiv.0806.0569,
  title  = {Tensor-triangulated categories and dualities},
  author = {Baptiste Calmès and Jens Hornbostel},
  journal= {arXiv preprint arXiv:0806.0569},
  year   = {2010}
}

Comments

53 pages

R2 v1 2026-06-21T10:47:05.055Z