[1] A.R. Aftabizadeh, J. Wiener and J.M. Xu:
Oscillatory and periodic solutions of delay differential equations with piecewise constant argument. Proc. Amer. Math. Soc. 99 (1987), 673–679.
MR 0877038
[2] S. Busenberg and K. L. Cooke: Models of vertically transmitted diseases with sequential-continuous dynamics. Nonlinear Phenomena in Mathematical Sciences, V. Lakshmikantham (ed.), Academic Press, New York, 1982, pp. 179–187.
[3] Q. Chuanxi, S.A. Kuruklis and G. Ladas:
Oscillations of linear autonomous systems of difference equations. Appl. Anal. 36 (1990), 51–63.
MR 1040878
[4] K.L. Cooke and J. Wiener:
Retarded differential equations with piecewise constant delays. J. Math. Anal. Appl. 99 (1984), 265–297.
MR 0732717
[5] K.L. Cooke and J. Wiener:
An equation alternately of retarded and advanced type. Proc. Amer. Math. Soc. 99 (1987), 726–732.
MR 0877047
[6] Y.K. Huang:
Oscillations and asymptotic stability of solutions of first order neutral differential equations with piecewise constant argument. J. Math. Anal. Appl. 149 (1990), 70–85.
MR 1054794 |
Zbl 0704.34078
[7] G. Ladas, E.C. Partheniadis and J. Schinas:
Existence theorems for second order differential equations with piecewise constant argument. Differential Equations, Proceedings of the 1987 Equadiff Conference, Dekker, New York, 1989, pp. 389–395.
MR 1021739
[8] G. Ladas, E.C. Partheniadis and J. Schinas:
Oscillation and stability of second order differential equations with piecewise constant argument. Rad. Mat. 5 (1989), no. 1, 171–178.
MR 1012733
[9] G. Papaschinopoulos:
On a class of third order neutral delay differential equations with piecewise constant argument. Internat J. Math. Math. Sci. 17 (1994), no. 1, 121–126.
MR 1255230 |
Zbl 0796.34046
[10] G. Papaschinopoulos and J. Schinas:
Existence, stability and oscillation of the solutions of first order neutral delay differential equations with piecewise constant argument. Appl. Anal. 44 (1992), 99–111.
MR 1284772
[11] E.C. Partheniadis:
Stability and oscillation of neutral delay differential equations with piecewise constant argument. Differential Integral Equations 1 (1988), no. 4, 459–472.
MR 0945821 |
Zbl 0723.34059
[12] J. Wiener and K.L. Cooke:
Oscillations in systems of differential equations with piecewise constant argument. J. Math. Anal. Appl. 137 (1989), 221–239.
MR 0981935