Affiliation:
1. School of Sciences, Zhejiang Agriculture and Forestry University, Lin’an, Zhejiang 311300, P. R. China
Abstract
Abstract
The equivalence of variable separation solutions based on the improved tanh-function method (ITM) for nonlinear models is illustrated. As an example, we restudy the (2+1)-dimensional generalised Nizhnik–Novikov–Veselov system via the ITM. Based on the radical sign-combined ansatz, five types of variable separation solutions are obtained. By careful analysis, we prove that these seemingly independent variable separation solutions actually depend on each other.
Subject
Physical and Theoretical Chemistry,General Physics and Astronomy,Mathematical Physics
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