Semiclassical expansions in the Toda hierarchy and the Hermitian matrix model

An iterative algorithm for determining a class of solutions of the dispersionful 2-Toda hierarchy characterized by string equations is developed. This class includes the solution which underlies the large N-limit of the Hermitian matrix model in the one-cut case. It is also shown how the double scal...

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Bibliographic Details
Authors: Martínez Alonso, Luis, Medina Reus, Elena
Format: article
Publication Date:2007
Country:España
Institution:Universidad Complutense de Madrid (UCM)
Repository:Docta Complutense
Language:English
OAI Identifier:oai:docta.ucm.es:20.500.14352/51627
Online Access:https://hdl.handle.net/20.500.14352/51627
Access Level:Open access
Keyword:51-73
Integrable hierarchies
Orthogonal polynomials
Discrete Kp
Universality
Equations
Limit
Asymptotics
Gravity
Growth
Física-Modelos matemáticos
Física matemática
Description
Summary:An iterative algorithm for determining a class of solutions of the dispersionful 2-Toda hierarchy characterized by string equations is developed. This class includes the solution which underlies the large N-limit of the Hermitian matrix model in the one-cut case. It is also shown how the double scaling limit can be naturally formulated in this scheme