InhaltsangabeHeight pairing between algebraic cycles.- On the derived category of perverse sheaves.- How to glue perverse sheaves.- Sheaves of the Virasoro and Neveu-Schwarz algebras.- Additive K-theory.- Cyclic homology of algebras with quadratic relations, universal enveloping algebras and group algebras.- On homotopy limit of homotopy algebras.- On the delooping of Chern character and Adams operations.- Noncommutative residue Chapter I. Fundamentals.