%0 Journal Article
%T LIE SYMMETRIES AND NOETHER SYMMETRIES
%A PGL Leach
%J Applicable Analysis and Discrete Mathematics
%D 2012
%I University of Belgrade and Academic Mind
%R 10.2298/aadm120625015l
%X We demonstrate that so-called nonnoetherian symmetries with which a known first integral is associated of a differential equation derived from a Lagrangian are in fact noetherian. The source of the misunderstanding lies in the nonuniqueness of the Lagrangian.
%K Noether integral
%K Lie symmetry
%K Calculus of Variations
%U http://pefmath.etf.rs/vol6num2/AADM-Vol6-No2-238-246.pdf