Descript 
1 online resource (xi, 149 pages) : digital, PDF file(s) 

text txt rdacontent 

computer c rdamedia 

online resource cr rdacarrier 
Series 
Cambridge tracts in mathematics ; 171 

Cambridge tracts in mathematics ; 171

Note 
Title from publisher's bibliographic system (viewed on 05 Oct 2015) 

Foundations  Cohomology, bundles and morphisms  Orbifold Ktheory  ChenRuan cohomology  Calculating ChenRuan cohomology 

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 

TAEBDC; 2009 
Link 
Print version: 9780521870047

Subject 
Orbifolds


Homology theory


Quantum theory


String models


Topology

Alt Author 
Leida, Johann, author


Ruan, Yongbin, 1963 author

Alt Title 
Orbifolds & Stringy Topology 
