[1] Atkinson V. V.:
On second-order non-linear oscillations. Pacific J. Math. 5 (1955), 643-647.
MR 0072316 |
Zbl 0065.32001
[2] Belohorec S.: Oscillatory solutions of certain nonlinear differential equations of the second order. (Slovak), Mat.-Fyz. Casopis Sloven. Akad. Vied. 11 (1961) 4, 250-255.
[3] Belohorec S.:
On some properties of the equation $y" + f(x) y(x) = 0$, $0 < a < 1$. Mat. Časopis Sloven. Akad. Vied. 17 (1967) 1, 10-19.
MR 0214854
[4] Coffman C. V., Ullrich D. F.:
On the continuation of solutions of a certain nonlinear differential equation. Monatsh, Math., 71 (1967), 385-392.
MR 0227494
[5] Gollwitzer H. E.:
On nonlinear oscillations for a second order delay equation. J. Math. Anal. Appl., 26 (1969), 385-389.
MR 0239224 |
Zbl 0169.11401
[6] Gollwitzer H. E.: Nonlinear second order differential equations and Stieltjes integrals. University of Tennessee Report, 1969.
[7] Hastings S. P.:
Boundary value problems in one differential equation with a discontinuity. J. of Differential Equations, 1 (1965), 346-369.
MR 0180723 |
Zbl 0142.06303
124
[8] Heidel J. W: A short proof of Atkinson's oscillation theorem. SI AM Review, in press.
[9] Heidel J. W: Rate of growth of non-oscillatory solutions of $y" + q(t)y^\gamma = 0$, $0 < y < 1$. to appear.
[10] Izjumova D. V., Kiguradze I. T:
Certain remarks on solutions of the equation $u" + + a(t)f(u) = 0$. Differencialnye Uravenija 4 (1968), 589-605 (Russian).
MR 0227544
[11] Moore R. A., Nehari Z.:
Non-oscillation theorems for a class of nonlinear differential equations. Trans. Amer. Math. Soc. 93 (1959), 30-52.
MR 0111897
[12] Nehari Z.:
On a class of nonlinear second order differential equations. Trans. Amer. Math. Soc. 95 (I960), 101-123.
MR 0111898 |
Zbl 0097.29501
[13] Wong J. S. W:
On second order nonlinear oscillation. Funkcialaj Ekvacioj, 11 (1968), 207-234.
MR 0245915 |
Zbl 0157.14802