Abstract:
The general solution of the system of differential equations describing Egorov hydrodynamic chains is constructed. The solution is given in terms of the elliptic sigma function. Invariants of the sigma function are expressed as
differential polynomials in a solution of the Chazy equation. The orbits of the induced action of SL(2,C) and degenerating operators in the space of solutions are described.
Citation:
V. M. Buchstaber, D. V. Leikin, M. V. Pavlov, “Egorov Hydrodynamic Chains, the Chazy Equation, and SL(2,C)”, Funktsional. Anal. i Prilozhen., 37:4 (2003), 13–26; Funct. Anal. Appl., 37:4 (2003), 251–262
This publication is cited in the following 11 articles:
Ferapontov E.V., Pavlov M.V., Xue L., “Second-Order Integrable Lagrangians and Wdvv Equations”, Lett. Math. Phys., 111:2 (2021), 58
Clery F., Ferapontov V E., “Dispersionless Hirota Equations and the Genus 3 Hyperelliptic Divisor”, Commun. Math. Phys., 376:2 (2020), 1397–1412
I. Kh. Sabitov, “The Moscow Mathematical Society and metric geometry: from Peterson to contemporary research”, Trans. Moscow Math. Soc., 77 (2016), 149–175
Brezhnev Yu.V., “Non-Canonical Extension of Theta-Functions and Modular Integrability of Theta-Constants”, Proc. R. Soc. Edinb. Sect. A-Math., 143:4 (2013), 689–738
E. Yu. Bunkova, V. M. Buchstaber, “Polynomial Dynamical Systems and Ordinary Differential Equations Associated with the Heat Equation”, Funct. Anal. Appl., 46:3 (2012), 173–190
Evgeny Vladimirovich Ferapontov, Lenos Hadjikos, Karima Robertovna Khusnutdinova, “Integrable Equations of the Dispersionless Hirota type and Hypersurfaces in the Lagrangian Grassmannian”, International Mathematics Research Notices, 2010:3 (2010), 496
E. Yu. Bunkova, V. M. Buchstaber, “Heat Equations and Families of Two-Dimensional Sigma Functions”, Proc. Steklov Inst. Math., 266 (2009), 1–28
Buchstaber V.M., “Heat Equations and Sigma Functions”, Geometric Methods in Physics, AIP Conference Proceedings, 1191, 2009, 46–58
Ferapontov, EV, “Differential-geometric approach to the integrability of hydrodynamic chains: the Haantjes tensor”, Mathematische Annalen, 339:1 (2007), 61
Michael Trott, The Mathematica GuideBook for Numerics, 2006, 1
E. V. Ferapontov, K. R. Khusnutdinova, M. V. Pavlov, “Classification of Integrable $(2+1)$-Dimensional Quasilinear Hierarchies”, Theoret. and Math. Phys., 144:1 (2005), 907–915