Abstract
In this paper two sequences of oscillation criteria for the self-adjoint second order differential equation (r(t)u′(t))′ + p(t)u(t) = 0 are derived. One of them deals with the case ∫∞ dt/r(t) = ∞, and the other with the case ∫∞ dt/r(t) < ∞.
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This work was supported by the grant VGA of Slovak Republic No. 1/7466/20.
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Kosice, J.O. Problems with one quarter. Czech Math J 55, 349–363 (2005). https://doi.org/10.1007/s10587-005-0026-9
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DOI: https://doi.org/10.1007/s10587-005-0026-9