1997/05/16 by L. V. Bogdanov, B. G. Konopelchenko · 1 citation
Physics and Astronomy · #solv-int #nlin.SI
paper · pdf · doi:10.1063/1.532531
43 pages, Latex
arxiv created 1997/05/16 · arxiv updated 2009/11/30
Analytic-bilinear approach for construction and study of integrable hierarchies is discussed. Generalized multicomponent KP and 2D Toda lattice hierarchies are considered. This approach allows to represent generalized hierarchies of integrable equations in a condensed form of finite functional equations. Generalized hierarchy incorporates basic hierarchy, modified hierarchy, singularity manifold equation hierarchy and corresponding linear problems. Different levels of generalized hierarchy are connected via invariants of Combescure symmetry transformation. Resolution of functional equations also leads to the τ-function and addition formulae to it.