The theory of motives began in the early 1960s when Grothendieck envisioned the existence of a "universal cohomology theory of algebraic varieties". The theory of noncommutative motives is more recent. It began in the 1980s when the Moscow school (Beilinson, Bondal, Kapranov, Manin, and others) began the study of algebraic varieties via their derived categories of coherent sheaves, and continued in the 2000s when Kontsevich conjectured the existence of a "universal invariant of noncommutative algebraic varieties". This book, prefaced by Yuri I. Manin, gives a rigorous overview of some of the main advances in the theory of noncommutative motives. It is divided into three main parts. The first part, which is of independent interest, is devoted to the study of DG categories from a homotopical viewpoint. The second part, written with an emphasis on examples and applications, covers the theory of noncommutative pure motives, noncommutative standard conjectures, noncommutative motivic Galois groups, and also the relations between these notions and their commutative counterparts. The last part is devoted to the theory of noncommutative mixed motives. The rigorous formalization of this latter theory requires the language of Grothendieck derivators, which, for the reader's convenience, is revised in a brief appendix
Generalized Dyson Series, Generalized Feynman's Diagrams, the Feynman Integral, and Feynman's Operational Calculus
The Künneth Theorem and the Universal Coefficient Theorem for Equivariant K-theory and KK-theory
In particular, in the 1-colored case (C = {∗}), this map is O(0) ≅ O(0) ⊗ I θ X. We call these maps the 0-ary action. In practice, the 0-ary action provides the O-algebra X with units. For example, suppose O is the 1-colored operad ...
The prototypical example of an operad is called the endomorphism operad of an object A with EA(n) = Hom(A⊗n ,A). Here the elements are normally called n-ary operations, and the structure map γ comes from using the outputs ...
Tensor Products of Principal Series Representations: Reduction of Tensor Products of Principal Series: Representations of Complex Semisimple Lie Groups
... of Volterra operators with application to Brownian motion, 2002 Roger Chalkley, Basic global relative invariants for ... 2001 Palle E. T. Jorgensen, Ruelle operators: Functions which are harmonic with respect to a transfer operator, ...
This is the second part of a series of papers called "HAG", devoted to developing the foundations of homotopical algebraic geometry.
The maps from loop suspensions to loop spaces are investigated using group representations in this article.
Rings, Modules and Algebras