Japanese journal of mathematics · 1957 · 136 citations · 32 references
Natural SciencesMathematicsDifferential EquationsFluid DynamicsBoundary ConditionsBoundary-layer TheoryBoundary-value ProblemsInitial Value ProblemsMoving Boundary ProblemsPartial Differential EquationsElliptic Boundary-value ProblemsFundamental SolutionsHyperbolic Boundary-value ProblemsInitial-boundary Value ProblemsMultipoint Boundary Value ProblemsParabolic Boundary-value ProblemsParabolic Partial Differential Equations
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On the theory of general partial differential operators
Lars Hörmander · Acta Mathematica · 1955 · 336 citations · Full text