caa a22 4500 477073700 CHVBK 20180405111433.0 cr unu---uuuuu 170330e19961101xx s 000 0 eng 10.1007/BF02259985 doi (NATIONALLICENCE)springer-10.1007/BF02259985 Patrsvania N. A. Razmadze Mathematical Institute, Georgian Academy of Sciences, 1, M. Alexidze St., 380093, Tbilisi, Republic of Georgia aut On oscillation of solutions of second-order systems of deviated differentaial equations [Elektronische Daten] [N. Patrsvania] Sufficient conditions are found for the oscillation of proper solutions of the system of differential equations $$\begin{array}{*{20}c} {u'_1 (t) = f_1 (t,u_1 (\tau _1 (t)),...,u_1 (\tau _m (t)),u_2 (\sigma _1 (t)),...,u_2 (\sigma _m (t))),} \\ {u'_2 (t) = f_2 (t,u_1 (\tau _1 (t)),...,u_1 (\tau _m (t)),u_2 (\sigma _1 (t)),...,u_2 (\sigma _m (t))),} \\ \end{array}$$ wheref i: R+×R2m→R (i=1,2) satisfy the local Carathéodory conditions andσ i , τ i :R + →R (i=1,...,m) are continuous functions such that $$\sigma _i (t) \leqslant t for t \in R_ + ,\mathop {\lim }\limits_{t \to + \infty } \sigma _i (t) = + \infty ,\mathop {\lim }\limits_{t \to + \infty } \tau _i (t) = + \infty (i = 1,...,m)$$ Plenum Publishing Corporation, 1996 Systems of deviated differential equations nationallicence proper solution nationallicence oscillation solution nationallicence Georgian Mathematical Journal Kluwer Academic Publishers-Plenum Publishers 3/6(1996-11-01), 571-582 1072-947X 3:6<571 1996 3 11290 https://doi.org/10.1007/BF02259985 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02259985 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Patrsvania N. A. Razmadze Mathematical Institute, Georgian Academy of Sciences, 1, M. Alexidze St., 380093, Tbilisi, Republic of Georgia aut NATIONALLICENCE 773 0- Georgian Mathematical Journal Kluwer Academic Publishers-Plenum Publishers 3/6(1996-11-01), 571-582 1072-947X 3:6<571 1996 3 11290 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer