Structure of the Standard Modules for the Affine Lie Algebra $A^{(1)}_1$

Structure of the Standard Modules for the Affine Lie Algebra $A^{(1)}_1$ PDF

Author: James Lepowsky

Publisher: American Mathematical Soc.

Published: 1985

Total Pages: 96

ISBN-13: 0821850482

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The affine Kac-Moody algebra $A_1 DEGREES{(1)}$ has served as a source of ideas in the representation theory of infinite-dimensional affine Lie algebras. This book develops the calculus of vertex operators to solve the problem of constructing all the standard $A_1 DEGREES{(1)}$-modules in the homogeneou

Annihilating Fields of Standard Modules of $\mathfrak {sl}(2, \mathbb {C})^\sim $ and Combinatorial Identities

Annihilating Fields of Standard Modules of $\mathfrak {sl}(2, \mathbb {C})^\sim $ and Combinatorial Identities PDF

Author: Arne Meurman

Publisher: American Mathematical Soc.

Published: 1999

Total Pages: 105

ISBN-13: 0821809237

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In this volume, the authors show that a set of local admissible fields generates a vertex algebra. For an affine Lie algebra $\tilde{\frak g}$, they construct the corresponding level $k$ vertex operator algebra and show that level $k$ highest weight $\tilde{\frak g}$-modules are modules for this vertex operator algebra. They determine the set of annihilating fields of level $k$ standard modules and study the corresponding loop $\tilde{\frak g}$-module--the set of relations that defines standard modules. In the case when $\tilde{\frak g}$ is of type $A{(1)} 1$, they construct bases of standard modules parameterized by colored partitions, and as a consequence, obtain a series of Rogers-Ramanujan type combinatorial identities.

Modules and Algebras

Modules and Algebras PDF

Author: Robert Wisbauer

Publisher: CRC Press

Published: 1996-05-15

Total Pages: 384

ISBN-13: 9780582289819

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Module theory over commutative asociative rings is usually extended to noncommutative associative rings by introducing the category of left (or right) modules. An alternative to this procedure is suggested by considering bimodules. A refined module theory for associative rings is used to investigate the bimodule structure of arbitary algebras and group actions on these algebras.

Geometric Representation Theory and Extended Affine Lie Algebras

Geometric Representation Theory and Extended Affine Lie Algebras PDF

Author: Erhard Neher

Publisher: American Mathematical Soc.

Published:

Total Pages: 226

ISBN-13: 0821871617

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This text presents lectures given at the Fields Institute Summer School on Geometric Representation Theory and Extended Affine Lie Algebras held at the University of Ottawa in 2009. It provides a systematic account by experts of some of the developments in Lie algebras and representation theory in the last two decades.