Functions Whose Even Derivatives Have a Prescribed Sign

DOI10.1073/pnas.26.11.657zbMath0061.11508OpenAlexW1999106752WikidataQ33745776 ScholiaQ33745776MaRDI QIDQ5838655

D. V. Widder

Publication date: 1940

Published in: Proceedings of the National Academy of Sciences (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1073/pnas.26.11.657

zbMATH Keywords

differentiation and integration

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