On Structure of Solutions of a System of Four Differential Inequalities
نویسنده
چکیده
The aim of the paper is to study a global structure of solutions of four differential inequalities αiy i(t)yi+1 ≥ 0, yi+1(t) = 0 ⇒ y ′ i(t) = 0, i = 1, 2, 3, 4 , αi ∈ {−1, 1}, α1α2α3α4 = −1 with respect to their zeros. The structure of an oscillatory solution is described, and the number of points with trivial Cauchy conditions is investigated.
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تاریخ انتشار 2001