A Class of Nonharmonic Fourier Series

1952/03/01 by R. J. Duffin, A. C. Schaeffer · 394 citations
Mathematics · Medicine · #Advanced Harmonic Analysis Research #Approximation Theory and Sequence Spaces #Differential Equations and Boundary Problems #Mathematics #Fourier series #Class (philosophy) #Series (stratigraphy) #Fourier analysis #Fourier transform #Mathematical analysis #Algebra over a field #Pure mathematics #Calculus (dental) #Artificial intelligence #Orthodontics #Computer science #Medicine #Geology

paper · doi:10.2307/1990760

published in Transactions of the American Mathematical Society 72(2), 341 (American Mathematical Society)

openalex publication_date 1952/03/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

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