Atsuo Kuniba

Quantum Groups in Three-Dimensional Integrability (eBook, PDF)

• Format: PDF

Produktbeschreibung

Quantum groups have been studied intensively in mathematics and have found many valuable applications in theoretical and mathematical physics since their discovery in the mid-1980s. Roughly speaking, there are two prototype examples of quantum groups, denoted by U_q and A_q. The former is a deformation of the universal enveloping algebra of a Kac-Moody Lie algebra, whereas the latter is a deformation of the coordinate ring of a Lie group. Although they are dual to each other in principle, most of the applications so far are based on U_q, and the main targets are solvable lattice models in 2-dimensions or quantum field theories in 1+1 dimensions.

This book aims to present a unique approach to 3-dimensional integrability based on A_q. It starts from the tetrahedron equation, a 3-dimensional analogue of the Yang-Baxter equation, and its solution due to work byKapranov-Voevodsky (1994).

Then, it guides readers to its variety of generalizations, relations to quantum groups, and applications. They include a connection to the Poincaré-Birkhoff-Witt basis of a unipotent part of U_q, reductions to the solutions of the Yang-Baxter equation, reflection equation, G₂ reflection equation, matrix product constructions of quantum R matrices and reflection K matrices, stationary measures of multi-species simple-exclusion processes, etc.

These contents of the book are quite distinct from conventional approaches and will stimulate and enrich the theories of quantum groups and integrable systems.

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Produktdetails

• Verlag: Springer Nature Singapore
• Seitenzahl: 331
• Erscheinungstermin: 25. September 2022
• Englisch
• ISBN-13: 9789811932625
• Artikelnr.: 65957125

Inhaltsangabe

Introduction.- Tetrahedron equation.- 3D R from quantized coordinate ring of type A.- 3D re ection equation and quantized re ection equation.- 3D K from quantized coordinate ring of type C.- 3D K from quantized coordinate ring of type B.- Intertwiners for quantized coordinate ring A_q (F₄).- Intertwiner for quantized coordinate ring A_q (G₂).- Comments on tetrahedron-type equation for non-crystallographic Coxeter groups.- Connection to PBW bases of nilpotent subalgebra of U_q.- Trace reductions of RLLL = LLLR.- Boundary vector reductions of RLLL = LLLR.- Trace reductions of RRRR = RRRR.- Boundary vector reductions of RRRR = RRRR.- Boundary vector reductions of (LGLG)K = K(GLGL).- Reductions of quantized G₂ re ection equation.- Application to multispecies TASEP.

Rezensionen

"This book is well written, with numerous examples, bibliographical information, references, and pictures. Essentially, all of the computations are based around algebraic manipulations, and generally require no deep knowledge of representation theory, algebraic geometry, or integrable systems. ... this is a very good book to move into the third dimension for studying integrable systems." (Travis Scrimshaw, Mathematical Reviews, February, 2024)

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