algebraictopology calculusofvariations cellaggregation criticalpointtheory differentialequations functionalanalysis general geodesics(mathematics) geometry globalanalysis(mathematics) géodésiques(mathématiques) hamiltoniansystems inégalitésvariationnelles mathematics maximaandminima morsetheory mountainpasstheorem nonsmoothoptimization partial symmetrygroups théoriedemorse théoriedespointscritiques(analysemathématique) variationalinequalities variationalinequalities(mathematics) variationalprinciples