Nonlinear Analysis · 2002 · 48 citations · 10 references
Natural SciencesComputational EngineeringDifferential EquationsBoundary ConditionsPartial Differential EquationsWeak FormulationElliptic Boundary-value ProblemsElliptic FunctionsElliptic Partial Differential EquationsNonlinear Boundary-value Problems
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An integral formula for total gradient variation
Wendell H. Fleming, Raymond Rishel · Archiv der Mathematik · 1960 · 259 citations