Orbifolds and stringy topology
 Responsibility
 Alejandro Adem, Johann Leida, Yongbin Ruan.
 Language
 English.
 Imprint
 Cambridge, UK ; New York : Cambridge University Press, 2007.
 Physical description
 xi, 149 p. : ill. ; 24 cm.
 Series
 Cambridge tracts in mathematics ; 171.
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Call number  Status 

QA613 .A424 2007  Available 
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Creators/Contributors
 Author/Creator
 Adem, Alejandro.
 Contributor
 Leida, Johann.
 Ruan, Yongbin, 1963
Contents/Summary
 Bibliography
 Includes bibliographical references (p.[138]145) and index.
 Contents

 Introduction 1. Foundations 2. Cohomology, bundles and morphisms 3. Orbifold Ktheory 4. ChenRuan cohomology 5. Calculating ChenRuan cohomology Bibliography Index.
 (source: Nielsen Book Data)
 Publisher's Summary
 An introduction to the theory of orbifolds from a modern perspective, combining techniques from geometry, algebraic topology and algebraic geometry. One of the main motivations, and a major source of examples, is string theory, where orbifolds play an important role. The subject is first developed following the classical description analogous to manifold theory, after which the book branches out to include the useful description of orbifolds provided by groupoids, as well as many examples in the context of algebraic geometry. Classical invariants such as de Rham cohomology and bundle theory are developed, a careful study of orbifold morphisms is provided, and the topic of orbifold Ktheory is covered. The heart of this book, however, is a detailed description of the ChenRuan cohomology, which introduces a product for orbifolds and has had significant impact. The final chapter includes explicit computations for a number of interesting examples.
(source: Nielsen Book Data)  Supplemental links

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Bibliographic information
 Publication date
 2007
 Series
 Cambridge tracts in mathematics ; 171
 ISBN
 9780521870047 (hbk.)
 0521870046 (hbk.)