02870cam a2200313Ia 4500 on1251847641 OCoLC ta 210520s2020 sz a 000 0 eng d 9783030302962 3030302962 (OCoLC)1251847641 TULIB eng TULIB TULIB QA641 .B444 2020 Beggs, Edwin J. Quantum riemannian geometry / Edwin J. Beggs, Shahn Majid. Cham : Springer, 2020 xvi, 809 p. : ill. Grundlehren der mathematischen Wissenschaften, A Series of Comprehensive Studies in Mathematics; vol. 355 Includes bibliographical reference and index. Differentials On An Algebra -- Hopf Algebras and Their Bicovariant Calculi -- Vector Bundles and Connections -- Curvature, Cohomology and Sheaves -- Quantum Principal Bundles and Framings -- Vector Fields and Differential Operators -- Quantum Complex Structures -- Quantum Riemannian Structures -- Quantum Spacetime -- Solutions -- References -- Index. "This book provides a comprehensive account of a modern generalisation of differential geometry in which coordinates need not commute. This requires a reinvention of differential geometry that refers only to the coordinate algebra, now possibly noncommutative, rather than to actual points. Such a theory is needed for the geometry of Hopf algebras or quantum groups, which provide key examples, as well as in physics to model quantum gravity effects in the form of quantum spacetime. The mathematical formalism can be applied to any algebra and includes graph geometry and a Lie theory of finite groups. Even the algebra of 2 x 2 matrices turns out to admit a rich moduli of quantum Riemannian geometries. The approach taken is a ̀bottom up' one in which the different layers of geometry are built up in succession, starting from differential forms and proceeding up to the notion of a quantum ̀Levi-Civita' bimodule connection, geometric Laplacians and, in some cases, Dirac operators.The book also covers elements of Connes' approach to the subject coming from cyclic cohomology and spectral triples. Other topics include various other cohomology theories, holomorphic structures and noncommutative D-modules. A unique feature of the book is its constructive approach and its wealth of examples drawn from a large body of literature in mathematical physics, now put on a firm algebraic footing. Including exercises with solutions, it can be used as a textbook for advanced courses as well as a reference for researchers." -- Prové de l'editor. Geometry, Differential. Gravitation. Mathematical physics. Majid, Shahn. Grundlehren der mathematischen Wissenschaften ; vol. 355. lcc BK 0 0 0 0 PNLIB PNLIB GEN 2021-06-17 QA641 .B444 2020 PNLIB21062212 2021-06-17 2021-06-17 BK 2399 2399