American Mathematical Monthly · 1967 · 74 citations · 0 references
Natural SciencesMathematicsPhysicsDifferential EquationsMathematical PhysicsTheoretical PhysicsBoundary-value ProblemsMaxwell's EquationsNavier-stokes EquationsPartial Differential EquationsSchrödinger EquationSystems Of Differential EquationsMaxwell's Equations In Differential FormNonlinear Partial Differential EquationsParabolic Partial Differential EquationsPartial Differential Equation SystemsTransport Equations