REPRESENTABLE FUNCTORS, SERRE FUNCTORS, AND MUTATIONS

This paper studies the categorical version of the concept of mutations of an exceptional set, as used in the theory of vector bundles. The basic object of study is a triangulated category with a family of subcategories satisfying the so-called adminisibility condition. A natural notion arising here is that of a Serre functor, effecting a certain duality in the triangulated category.