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Higher Segal Spaces

Higher Segal Spaces

Paperback

Series: Lecture Notes in Mathematics, Book 2244

AlgebraGeometry

ISBN10: 3030271226
ISBN13: 9783030271220
Publisher: Springer
Published: Oct 18 2019
Pages: 218
Weight: 0.74
Height: 0.50 Width: 6.14 Depth: 9.21
Language: English

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.

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Algebra