most citedDirect integral method, complete discrimination system for polynomial and applications to classifications of all single traveling wave solutions to nonlinear differential equations:a survey

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math-ph2009

Infinite-dimensional Hamilton-Jacobi theory and -integrability

Cheng-shi Liu

The classical Liouvile integrability means that there exist independent first integrals in involution for -dimensional phase space. However, in the infinite-dimensional cas…