Journal of Differential Equations · 2016 · 13 citations · 21 references
Natural SciencesMathematicsDynamical SystemsContinuous Dynamical SystemsOperator TheoryReflectionSpectral AnalysisSpectral MethodsSpectral TheoryOperator SemigroupsOperatorsSemigroup TheorySpectral DecompositionSpectral Theory Of Dynamical Systems
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Introduction to the Theory of Fourier Integrals
A. C. Offord · Nature · 1938 · 2.3K citations · Full text
Introduction to Asymptotics and Special Functions
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