Categories and SheavesCategories and sheaves, which emerged in the middle of the last century as an enrichment for the concepts of sets and functions, appear almost everywhere in mathematics nowadays. This book covers categories, homological algebra and sheaves in a systematic and exhaustive manner starting from scratch, and continues with full proofs to an exposition of the most recent results in the literature, and sometimes beyond. The authors present the general theory of categories and functors, emphasising inductive and projective limits, tensor categories, representable functors, ind-objects and localization. Then they study homological algebra including additive, abelian, triangulated categories and also unbounded derived categories using transfinite induction and accessible objects. Finally, sheaf theory as well as twisted sheaves and stacks appear in the framework of Grothendieck topologies. |
Contents
Introduction | 1 |
པ | 3 |
The Language of Categories | 9 |
Exercises | 30 |
Limits | 35 |
Filtrant Limits 71 | 70 |
Tensor Categories | 93 |
113 | 117 |
Complexes in Additive Categories | 269 |
Complexes in Abelian Categories | 297 |
Derived Categories | 319 |
Unbounded Derived Categories 347 | 346 |
Indization and Derivation | 369 |
Grothendieck Topologies | 389 |
Sheaves on Grothendieck Topologies 405 | 404 |
Abelian Sheaves | 435 |