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OverviewPROPs and their variants are extremely general and powerful machines that encode operations with multiple inputs and multiple outputs. In this respect PROPs can be viewed as generalizations of operads that would allow only a single output. Variants of PROPs are important in several mathematical fields, including string topology, topological conformal field theory, homotopical algebra, deformation theory, Poisson geometry, and graph cohomology. The purpose of this monograph is to develop, in full technical detail, a unifying object called a generalized PROP. Then with an appropriate choice of pasting scheme, one recovers (colored versions of) dioperads, half-PROPs, (wheeled) operads, (wheeled) properads, and (wheeled) PROPs. Here the fundamental operation of graph substitution is studied in complete detail for the first time, including all exceptional edges and loops as examples of a new definition of wheeled graphs. A notion of generators and relations is proposed which allows one to build all of the graphs in a given pasting scheme from a small set of basic graphs using graph substitution. This provides information at the level of generalized PROPs, but also at the levels of algebras and of modules over them. Working in the general context of a symmetric monoidal category, the theory applies for both topological spaces and chain complexes in characteristic zero. This book is useful for all mathematicians and mathematical physicists who want to learn this new powerful technique. Full Product DetailsAuthor: Donald Yau , Mark W. JohnsonPublisher: American Mathematical Society Imprint: American Mathematical Society Volume: 203 Weight: 0.748kg ISBN: 9781470421977ISBN 10: 1470421976 Pages: 311 Publication Date: 30 July 2015 Audience: Professional and scholarly , Professional & Vocational Format: Hardback Publisher's Status: Active Availability: Out of stock  The supplier is temporarily out of stock of this item. It will be ordered for you on backorder and shipped when it becomes available. Table of ContentsWheeled graphs and pasting schemes: Wheeled graphs Special sets of graphs Basic operations on wheeled graphs Graph groupoids Graph substitution Properties of graph substitution Generators for graphs Pasting schemes Well-matched pasting schemes Generalized PROPs, algebras, and modules: Generalized PROPs Biased characterizations of generalized PROPs Functors of generalized PROPs Algebras over generalized PROPs Alternative descriptions of generalized PROPs Modules over generalized PROPs May modules over algebras over operads Bibliography IndexReviewsAuthor InformationDonald Yau, The Ohio State University at Newark, OH, USA. Mark W. Johnson, Pennsylvania State University Altoona, PA, USA. Tab Content 6Author Website:Countries AvailableAll regions |
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