Research Article

Group Classification of a Generalized Lane-Emden System

Table 2

Lie symmetries for , for various functions and .

arbitrary, , a constant

, a constant, arbitrary

, a constant, , and constants ( )
,
,
,

, a constant, , and constants ( )
,

, a constant, ,   , and constants ( )
,

, a constant, , and constants ( )
,

, , ,
,

, , ,
,

, , ,

, , ,

, , ,

, , ,

, , ,

, , ,

, , ,

, , ,

, , ,

, ,

, ,