3 papers
math.AP2010
Group Analysis via Weak Symmetries For Benjamin-Bona-Mahony Equation
Mehdi Nadjafikhah, Fatemeh Ahangari, Saeed Dodangeh
In this paper, weak symmetries of the Benjamin-Bona-Mahony (BBM) equation have been investigated. Indeed, this method has been performed by applying the non-classical symmetries of…
math.AP2010
Group analysis for generalized reaction-diffusion convection equation
Mehdi Nadjafikhah, Saeed Dodangeh
symmetry, group classification, differential invariants, Lie-classical method,infinitesimal criterion method, RDC equation, KPP equation, similarity solutions.
math.AP2010
Variational problems without having any non-trivial Lie variational symmetries
Mehdi Nadjafikhah, Saeed Dodangeh
In this paper we construct variational problems without Lie non-trivial variational symmetry and solving them using new class of symmetries (-symmetry) which introduced by Guise…