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Homotopy-theoretically enriched categories of noncommutative motives

Homotopy-theoretically enriched categories of noncommutative motives Waldhausen’s K-theory of the sphere spectrum (closely related to the algebraic K-theory of the integers) is naturally augmented as an S 0-algebra, and so has a Koszul dual. Classic work of Deligne and Goncharov implies an identification of the rationalization of this (covariant) dual with the Hopf algebra of functions on the motivic group for their category of mixed Tate motives over [InlineMediaObject not available: see fulltext.]. This paper argues that the rationalizations of categories of noncommutative motives defined recently by Blumberg, Gepner, and Tabuada consequently have natural enrichments, with morphism objects in the derived category of mixed Tate motives over [InlineMediaObject not available: see fulltext.]. We suggest that homotopic descent theory lifts this structure to define a category of motives defined not over [InlineMediaObject not available: see fulltext.] but over the sphere ring-spectrum S 0. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research in the Mathematical Sciences Springer Journals

Homotopy-theoretically enriched categories of noncommutative motives

Research in the Mathematical Sciences , Volume 2 (1) – Jun 10, 2015

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References (33)

Publisher
Springer Journals
Copyright
Copyright © 2015 by Morava.
Subject
Mathematics; Mathematics, general; Applications of Mathematics; Computational Mathematics and Numerical Analysis
eISSN
2197-9847
DOI
10.1186/s40687-015-0028-7
Publisher site
See Article on Publisher Site

Abstract

Waldhausen’s K-theory of the sphere spectrum (closely related to the algebraic K-theory of the integers) is naturally augmented as an S 0-algebra, and so has a Koszul dual. Classic work of Deligne and Goncharov implies an identification of the rationalization of this (covariant) dual with the Hopf algebra of functions on the motivic group for their category of mixed Tate motives over [InlineMediaObject not available: see fulltext.]. This paper argues that the rationalizations of categories of noncommutative motives defined recently by Blumberg, Gepner, and Tabuada consequently have natural enrichments, with morphism objects in the derived category of mixed Tate motives over [InlineMediaObject not available: see fulltext.]. We suggest that homotopic descent theory lifts this structure to define a category of motives defined not over [InlineMediaObject not available: see fulltext.] but over the sphere ring-spectrum S 0.

Journal

Research in the Mathematical SciencesSpringer Journals

Published: Jun 10, 2015

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