Laguerre–Forsyth invariant

The Laguerre–Forsyth invariant is a concept in the field of differential geometry and the theory of differential equations. It arises in the context of studying the properties of certain mathematical objects under transformations, particularly in the context of higher-order differential equations. The Laguerre–Forsyth invariant specifically relates to the form of a class of differential equations known as ordinary differential equations (ODEs), particularly those of the type that can be transformed into a canonical form by appropriate changes of variables.