Journal
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
Volume 18, Issue 7, Pages 1600-1606Publisher
ELSEVIER
DOI: 10.1016/j.cnsns.2012.11.023
Keywords
Nonlinear self-adjointness; Conservation laws
Categories
Funding
- DGICYT Project [MTM2009-11875]
- Junta de Andalucia group [FQM-201]
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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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