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JOURNAL OF
ALGEBRAIC
COMBINATORICS

  Editors-in-chief: C. A. Athanasiadis, T. Lam, A. Munemasa, H. Van Maldeghem
ISSN 0925-9899 (print) • ISSN 1572-9192 (electronic)
 

Duality Maps of Finite Abelian Groups and Their Applications to Spin Models

Etsuko Bannai and Akihiro Munemasa

DOI: 10.1023/A:1008613331395

Abstract

Duality maps of finite abelian groups are classified. As a corollary, spin models on finite abelian groups which arise from the solutions of the modular invariance equations are determined as tensor products of indecomposable spin models. We also classify finite abelian groups whose Bose-Mesner algebra can be generated by a spin model.

Pages: 223–233

Keywords: spin model; finite abelian group; quadratic form; association scheme

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