期刊
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
卷 18, 期 7, 页码 1600-1606出版社
ELSEVIER
DOI: 10.1016/j.cnsns.2012.11.023
关键词
Nonlinear self-adjointness; Conservation laws
类别
资金
- DGICYT Project [MTM2009-11875]
- Junta de Andalucia group [FQM-201]
In this work we study a generalization of the well known Fisher equation. We determine the subclasses of these equations which are nonlinear self-adjoint. By using a general theorem on conservation laws proved by Nail Ibragimov and the symmetry generators we find conservation laws for these partial differential equations without classical Lagrangians. (c) 2012 Elsevier B.V. All rights reserved.
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