Some identities related to Pólya’s property 𝑊 for linear differential equations

Zettl, Anton

doi:10.1090/S0002-9939-1967-0222370-0

Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

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Some identities related to Pólya’s property $W$ for linear differential equations
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by Anton Zettl

Proc. Amer. Math. Soc. 18 (1967), 992-994

DOI: https://doi.org/10.1090/S0002-9939-1967-0222370-0

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References

Earl A. Coddington and Norman Levinson, Theory of ordinary differential equations, McGraw-Hill Book Co., Inc., New York-Toronto-London, 1955. MR 0069338
Marvin Marcus and Henryk Minc, A survey of matrix theory and matrix inequalities, Allyn and Bacon, Inc., Boston, Mass., 1964. MR 0162808
G. Pólya, On the mean-value theorem corresponding to a given linear homogeneous differential equation, Trans. Amer. Math. Soc. 24 (1922), no. 4, 312–324. MR 1501228, DOI 10.1090/S0002-9947-1922-1501228-5