Lie symmetry analysis of nonlinear evolution equation for description   nonlinear waves in a viscoelastic tube
  In this paper, the Lie symmetry method is performed for the nonlinear evolution equation for description nonlinear waves in a viscoelastic tube. we will find one and two-dimensional optimal system of Lie subalgebras. Furthermore, preliminary classification of its group-invariant solutions are investigated. 
Mehdi Nadjafikhah and Vahid Shirvani-Sh
math.AP