On the distance between zeroes and the limit-point problem

Yan, Ju Rang

doi:10.1090/S0002-9939-1989-0984825-5

On the distance between zeroes and the limit-point problem
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Proc. Amer. Math. Soc. 107 (1989), 971-975 Request permission

Abstract:

For the oscillatory equation $x''(t) + q(t)x(t) = 0$, we prove some new results on the distance between consecutive zeroes and answer the questions raised by Everitt, Giertz and Weidmann [3] and by Patula [5] respectively and show that a counterexample given by Butler and Rao [1] is incorrect.

References

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