On proper oscillatory and vanishing-at-infinity solutions of differential equations with a deviating argument |
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Authors: | I Kiguradze D Chichua |
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Institution: | 1. A. Razmadze Mathematical Institute, Georgian Academy of Sciences, 1, Rukhadze St., 380093, Tbilisi, Republic of Georgia 2. I. Vekua Institute of Applied Mathematics, Tbilisi State University, 2, University St., 380043, Tbilisi, Republic of Georgia
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Abstract: | Sufficient conditions are found for the existence of multiparametric families of proper oscillatory and vanishing-at-infinity solutions of the differential equation $$u^{(n)} (t) = g\left( {t, u(\tau _0 (t)), \ldots ,u^{(m - 1)} (\tau _{m - 1} (t))} \right)$$ , wheren≥4,m is the integer part of π/2,g:R +×R m →R is a function satisfying the local Carathéodory conditions, and τ i :R +→R(i=0,...,m?1) are measurable functions such that τ i (t) →+∞ fort→+∞(i=0,...,m?1). |
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