Czechoslovak Mathematical Journal · 1991 · 18 citations · 0 references
Natural SciencesMathematicsDifferential EquationsBoundary ConditionsInitial Value ProblemsPartial Differential EquationsRegular SolutionsSystems Of Differential EquationsExistence Of MinimizersFunctional EquationsIndependent VariablesNonlinear Initial Value ProblemsNonlinear Partial Differential Equations