Oscillatory Properties of Solutions of Impulsive Differential Equations with Several Retarded Arguments
نویسندگان
چکیده
The impulsive differential equation x′(t) + m ∑ i=1 pi(t)x(t− τi) = 0, t 6= ξk, ∆x(ξk) = bkx(ξk) with several retarded arguments is considered, where pi(t) ≥ 0, 1 + bk > 0 for i = 1, . . . , m, t ≥ 0, k ∈ N. Sufficient conditions for the oscillation of all solutions of this equation are found. §
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تاریخ انتشار 2001