A necessary and sufficient condition for oscillation of the generalized Liénard equation
A necessary and sufficient condition for oscillation of all continuable solutions to the Liénard system \(x'=y-F(x),\quad y'=-g(x),\) with F(x) and g(x) continuous functions satisfying locally a Lipschitz condition, is proved.
scientific article; zbMATH DE number 4169113
scientific article