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Trudy Matematicheskogo Instituta imeni V.A. Steklova, 2011, Volume 275, Pages 295–300
(Mi tm3351)
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Hecke graphs, Ramanujan graphs and generalized duality transformations for lattice spin systems
M. I. Monastyrsky Institute for Theoretical and Experimental Physics, Moscow, Russia
Abstract:
I discuss two related subjects: (1) Hecke surfaces and $k$-regular graphs, (2) duality transformations for lattice spin models. Each of them is related to deep mathematical and physical theories, and at first glance, they have nothing in common. However, it became evident in recent years that there exist deep internal relations between these two problems. Especially interesting (and mysterious) is the role of Hecke groups in this context. I consider the following relevant example: Hecke graphs and Ramanujan graphs.
Received in May 2011
Citation:
M. I. Monastyrsky, “Hecke graphs, Ramanujan graphs and generalized duality transformations for lattice spin systems”, Classical and modern mathematics in the wake of Boris Nikolaevich Delone, Collected papers. In commemoration of the 120th anniversary of Boris Nikolaevich Delone's birth, Trudy Mat. Inst. Steklova, 275, MAIK Nauka/Interperiodica, Moscow, 2011, 295–300; Proc. Steklov Inst. Math., 275 (2011), 284–289
Linking options:
https://www.mathnet.ru/eng/tm3351 https://www.mathnet.ru/eng/tm/v275/p295
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