Geodesic
Problems with one quarter
Czechoslovak Mathematical Journal, Tome 55 (2005) no. 2, pp. 349-363.

Voir la notice de l'article provenant de la source Czech Digital Mathematics Library

In this paper two sequences of oscillation criteria for the self-adjoint second order differential equation $(r(t)u^{\prime }(t))^{\prime }+p(t)u(t)=0$ are derived. One of them deals with the case $\int ^{\infty }\frac{{\mathrm d}t}{r(t)}=\infty $, and the other with the case $\int ^{\infty }\frac{{\mathrm d}t}{r(t)}\infty $.
Classification : 34C10
Keywords: oscillation theory 
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     title = {Problems with one quarter},
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Ohriska, Ján. Problems with one quarter. Czechoslovak Mathematical Journal, Tome 55 (2005) no. 2, pp. 349-363. http://geodesic.mathdoc.fr/item/CMJ_2005__55_2_a5/