On the maintenance of oscillations of nth order equations under the effect of a small forcing term

Some oscillation theorems for second order differential equations

N. P. Bhatia · Journal of Mathematical Analysis and Applications · 1966 · 64 citations

Oscillation Theorems, Oscillation Theory, Nonlinear Oscillation +1

Oscillation of solutions of certain ordinary differential equations of $n{\rm th}$ order

G. H. Ryder, David V. V. Wend · Proceedings of the American Mathematical Society · 1970 · 34 citations

J. Macki, Sufficient Conditions, I. Liäko +6

Oscillation of Solutions of Certain Ordinary Differential Equations of nTH Order

G. H. Ryder, David V. V. Wend · Proceedings of the American Mathematical Society · 1970 · 31 citations

On oscillation of solutions of even order nonlinear differential equations

Athanassios G. Kartsatos · Journal of Differential Equations · 1969 · 30 citations

Oscillation Theory, Nonlinear Equation, Nonlinear Resonance +2

Oscillation of nonlinear second-order equations

L. E. Bobisud · Proceedings of the American Mathematical Society · 1969 · 23 citations

Oscillation Theory, Nonlinear Equation, Nonlinear Oscillation +1