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Higher Segal Spaces

Overview

Authors:
  1. Tobias Dyckerhoff

    1. Department of Mathematics, University of Hamburg, Hamburg, Germany

  2. Mikhail Kapranov

    1. Kavli Institute for the Physics and Mathematics of the Universe, Kashiwa, Japan

  • Initiates a theory of new categorical structures that generalize the simplicial Segal property to higher dimensions
  • Explores many important constructions that exhibit the 2-Segal property
  • Offers an entry point for readers new to the field by including an elementary formulation of 2-Segal spaces and numerous examples

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About this book

This monograph initiates a theory of new categorical structures that generalize the simplicial Segal property to higher dimensions. The authors introduce the notion of a d-Segal space, which is a simplicial space satisfying locality conditions related to triangulations of d-dimensional cyclic polytopes. Focus here is on the 2-dimensional case. Many important constructions are shown to exhibit the 2-Segal property, including Waldhausen’s S-construction, Hecke-Waldhausen constructions, and configuration spaces of flags. The relevance of 2-Segal spaces in the study of Hall and Hecke algebras is discussed.

Higher Segal Spaces marks the beginning of a program to systematically study d-Segal spaces in all dimensions d. The elementary formulation of 2-Segal spaces in the opening chapters is accessible to readers with a basic background in homotopy theory. A chapter on Bousfield localizations provides a transition to the general theory, formulated interms of combinatorial model categories, that features in the main part of the book. Numerous examples throughout assist readers entering this exciting field to move toward active research; established researchers in the area will appreciate this work as a reference.

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Table of contents (11 chapters)

Authors and Affiliations

  • Department of Mathematics, University of Hamburg, Hamburg, Germany

    Tobias Dyckerhoff

  • Kavli Institute for the Physics and Mathematics of the Universe, Kashiwa, Japan

    Mikhail Kapranov

About the authors

Tobias Dyckerhoff is Lichtenberg Professor of Mathematics at the University of Hamburg, Germany. His research interests are centered on higher structures in algebra and geometry, and extend to mathematical physics.

Mikhail Kapranov is Professor of Mathematics at the Kavli Institute for the Physics and Mathematics of the Universe in Japan. His research spans algebra, algebraic geometry and category theory, with a particular interest in using category theory to extend ideas at the interface of algebra and geometry. His previous books include Discriminants, Resultants, and Multidimensional Determinants, with I. M. Gelfand and A. V. Zelevinsky, a Modern Birkhäuser Classic.

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