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TMF, 2011 Volume 168, Number 1, Pages 125–137 (Mi tmf6668)

This article is cited in 3 papers

Singular sectors of the one-layer Benney and dispersionless Toda systems and their interrelations

B. G. Konopelchenkoa, L. Martínez Alonsob, E. Medinac

a Dipartimento di Fisica, Università del Salento and INFN, Sezione di Lecce, Lecce, Italy
b Departamento de Física Teórica II, Universidad Complutense, Madrid, Spain
c Departamento de Matemáticas, Universidad de Cádiz, Puerto Real, Cádiz, Spain

Abstract: We completely describe the singular sectors of the one-layer Benney system (classical long-wave equation) and dispersionless Toda system. The associated Euler–Poisson–Darboux equations $E(1/2,1/2)$ and $E(-1/2,-1/2)$ are the main tool in the analysis. We give a complete list of solutions of the one-layer Benney system depending on two parameters and belonging to the singular sector. We discuss the relation between Euler–Poisson–Darboux equations $E(\varepsilon,\varepsilon)$ with the opposite sign of $\varepsilon$.

Keywords: critical point, singular sector, Euler–Poisson–Darboux equation.

DOI: 10.4213/tmf6668


 English version:
Theoretical and Mathematical Physics, 2011, 168:1, 963–973

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© Steklov Math. Inst. of RAS, 2026