Remote Access Bulletin of the American Mathematical Society

Bulletin of the American Mathematical Society

ISSN 1088-9485(online) ISSN 0273-0979(print)



A substitute for the Picone formula

Author: Walter Leighton
Journal: Bull. Amer. Math. Soc. 55 (1949), 325-328
MathSciNet review: 0031156
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  • G. A. Bliss and I. J. Schoenberg, On Separation, Comparison and Oscillation Theorems for Self-Adjoint Systems of Linear Second Order Differential Equations, Amer. J. Math. 53 (1931), no. 4, 781–800. MR 1506854, DOI
  • Maxime Bôcher 1. Leçons sur les methodes de Sturm, Paris, Gauthier-Villars, 1917. E. L. Ince 1. Ordinary differential equations, London, Longmans, 1927.
  • Marston Morse, A generalization of the sturm separation and comparison theorems in $n$-space, Math. Ann. 103 (1930), no. 1, 52–69. MR 1512617, DOI
  • Marston Morse, The calculus of variations in the large, American Mathematical Society Colloquium Publications, vol. 18, American Mathematical Society, Providence, RI, 1996. Reprint of the 1932 original. MR 1451874

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