Categorical Homotopy Theory by Emily Riehl

Categorical Homotopy Theory by Emily Riehl

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Summary

This categorical perspective on homotopy theory helps consolidate and simplify one's understanding of derived functors, homotopy limits and colimits, and model categories, among others.

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Categorical Homotopy Theory by Emily Riehl

This book develops abstract homotopy theory from the categorical perspective with a particular focus on examples. Part I discusses two competing perspectives by which one typically first encounters homotopy (co)limits: either as derived functors definable when the appropriate diagram categories admit a compatible model structure, or through particular formulae that give the right notion in certain examples. Emily Riehl unifies these seemingly rival perspectives and demonstrates that model structures on diagram categories are irrelevant. Homotopy (co)limits are explained to be a special case of weighted (co)limits, a foundational topic in enriched category theory. In Part II, Riehl further examines this topic, separating categorical arguments from homotopical ones. Part III treats the most ubiquitous axiomatic framework for homotopy theory - Quillen's model categories. Here, Riehl simplifies familiar model categorical lemmas and definitions by focusing on weak factorization systems. Part IV introduces quasi-categories and homotopy coherence.
Emily Riehl is a Benjamin Peirce Fellow in the Department of Mathematics at Harvard University, Massachusetts and a National Science Foundation Mathematical Sciences Postdoctoral Research Fellow.
SKU Unavailable
ISBN 13 9781107048454
ISBN 10 1107048451
Title Categorical Homotopy Theory
Author Emily Riehl
Series New Mathematical Monographs
Condition Unavailable
Binding Type Hardback
Publisher Cambridge University Press
Year published 2014-05-26
Number of pages 372
Cover note Book picture is for illustrative purposes only, actual binding, cover or edition may vary.