Description
This document is a series of notes on variational methods and critical point theory which are used to solve problems in Lorentzian geometry. These problems can have a variational nature, such as the existence and multiplicity of geodesics on a manifold.
Appliies variational methods and critical point theory on infinite dimenstional manifolds to some problems in Lorentzian geometry which have a variational nature, such as existence and multiplicity results on geodesics and relations between such geodesics and the topology of the manifold.