Abstract
We carry out a classification of Lie symmetries for the (
2
+
1
)-dimensional nonlinear damped wave equation
u
t
t
+
f
u
u
t
=
d
i
v
(
g
u
g
r
a
d
u
)
with variable damping. Similarity reductions of the equation are performed using the admitted Lie symmetries of the equation and some interesting solutions are presented. Employing the multiplier approach, admitted conservation laws of the equation are constructed for some new, interesting cases.