Thisbookprovidesacomprehensiveintroductiontomodernglobalvariationaltheoryonfibredspaces.Itisbasedondifferentiationandintegrationtheoryofdifferentialformsonsmoothmanifolds,andontheconceptsofglobalanalysisandgeometrysuchasjetprolongationsofmanifolds,mappings,andLiegroups.ThebookwillbeinvaluableforresearchersandPhDstudentsindifferentialgeometry,globalanalysis,differentialequationsonmanifolds,andmathematicalphysics,andforthereaderswhowishtoundertakefurtherrigorousstudyinthisbroadinterdisciplinaryfield.