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Integrals of tau functions: A round dance tau function and multimatrix integrals
A. Yu. Orlovab a Shirshov Institute of Oceanology, Russian Academy of
Sciences, Moscow, Russia
b Alikhanov Institute for Theoretical and Experimental
Physics, National Research Center "Kurchatov Institute," Moscow,
Russia
Abstract:
A multimatrix model can be built on two ingredients: the choice of an embedded graph and the choice of the integrand, that is, a tau function. We compare the simplest nontrivial tau function of the Toda lattice and the simplest nontrivial tau function of the N-component Toda lattice in the context of their application to multimatrix integrals.
Keywords:
tau function, special solution of the multicomponent KP hierarchy, embedded graph, Hurwitz number.
Received: 20.11.2022 Revised: 15.02.2023
Citation:
A. Yu. Orlov, “Integrals of tau functions: A round dance tau function and multimatrix integrals”, TMF, 215:3 (2023), 377–387; Theoret. and Math. Phys., 215:3 (2023), 784–792
Linking options:
https://www.mathnet.ru/eng/tmf10406https://doi.org/10.4213/tmf10406 https://www.mathnet.ru/eng/tmf/v215/i3/p377
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Abstract page: | 210 | Full-text PDF : | 21 | Russian version HTML: | 128 | References: | 23 | First page: | 4 |
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