ANOTHER IMPROVEMENT ON OSCILLATION CRITERIA FOR FIRST-ORDER DELAY DIFFERENTIAL EQUATIONS

摘要

This article studies the oscillation of solutions to the delay differ-ential equation x & PRIME;(t) +p(t)x(& tau;(t)) = 0. We improve the existing oscillation criteria, by lowering the existing bounds on lim sup & int;& tau;t p that provide sufficient conditions for the oscillation of all solutions.

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