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This book focuses on the representation theory of q-Schur algebras and connections with the representation theory of Hecke algebras and quantum general linear groups. The aim is to present, from a unified point of view, quantum analogues of certain results known already in the classical case. The approach is largely homological, based on Kempf's vanishing theorem for quantum groups and the quasi-hereditary structure of the q-Schur algebras. Beginning with an introductory chapter dealing with the relationship between the ordinary general linear groups and their quantum analogies, the text goes on to discuss the Schur Functor and the 0-Schur algebra. The next chapter considers Steinberg's tensor product and infinitesimal theory. Later sections of the book discuss tilting modules; the Ringel dual of the q-Schur algebra; Specht modules for Hecke algebras; and the global dimension of the q-Schur algebras. An appendix gives a self-contained account of the theory of quasi-hereditary algebras and their associated tilting modules. This volume will be primarily of interest to researchers in algebra and related topics in pure mathematics.

Representations of groups. --- Representations of algebras. --- Group representation (Mathematics) --- Groups, Representation theory of --- Group theory --- Algebra

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Representations of groups --- Curves, Elliptic --- Algebraic fields --- 511 --- 511 Number theory --- Number theory --- Algebraic number fields --- Algebraic numbers --- Fields, Algebraic --- Algebra, Abstract --- Algebraic number theory --- Rings (Algebra) --- Group representation (Mathematics) --- Groups, Representation theory of --- Group theory --- Elliptic curves --- Curves, Algebraic

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The book is devoted to the geometrical construction of the representations of Lusztig's small quantum groups at roots of unity. These representations are realized as some spaces of vanishing cycles of perverse sheaves over configuration spaces. As an application, the bundles of conformal blocks over the moduli spaces of curves are studied. The book is intended for specialists in group representations and algebraic geometry.

Category theory. Homological algebra --- Quantum groups --- Representations of groups --- Sheaf theory --- Mathematical physics --- Mathematical Theory --- Applied Physics --- Mathematics --- Engineering & Applied Sciences --- Physical Sciences & Mathematics --- Bundeltheorie --- Cohomology [Sheaf ] --- Faisceaux [Théorie des ] --- Fysica [Mathematische ] --- Fysica [Wiskundige ] --- Groupes des quantiques --- Mathematische fysica --- Physical mathematics --- Physics -- Mathematics --- Physics [Mathematical ] --- Physique -- Mathématiques --- Physique -- Méthodes mathématiques --- Physique mathématique --- Physique théorique --- Quanta [Groupes des ] --- Quantumgroepen --- Representation des groupes --- Sheaf cohomology --- Sheaves (Algebraic topology) --- Sheaves [Theory of ] --- Théorie des faisceaux --- Vertegenwoordiging van groepen --- Wiskundige fysica --- Algebraic geometry. --- Differential geometry. --- Topology. --- Nonassociative rings. --- Rings (Algebra). --- Algebraic topology. --- Quantum physics. --- Algebraic Geometry. --- Differential Geometry. --- Non-associative Rings and Algebras. --- Algebraic Topology. --- Quantum Physics. --- Quantum dynamics --- Quantum mechanics --- Quantum physics --- Physics --- Mechanics --- Thermodynamics --- Topology --- Algebraic rings --- Ring theory --- Algebraic fields --- Rings (Algebra) --- Analysis situs --- Position analysis --- Rubber-sheet geometry --- Geometry --- Polyhedra --- Set theory --- Algebras, Linear --- Differential geometry --- Algebraic geometry --- Quantum groups. --- Representations of groups. --- Sheaf theory. --- Cohomology, Sheaf --- Sheaves, Theory of --- Algebraic topology --- Group representation (Mathematics) --- Groups, Representation theory of --- Group theory --- Enveloping algebras, Quantized --- Function algebras, Quantized --- Groups, Quantum --- Quantized enveloping algebras --- Quantized function algebras --- Quantum algebras --- Quantum field theory