OSCILLATION CRITERIA FOR SECOND-ORDER NONLINEAR SELF-ADJOINT DIFFERENTIAL EQUATIONS

被引:0
作者
Hesaaraki, M. [1 ]
Moradifam, A. [2 ]
机构
[1] Sharif Univ Technol, Dept Math, POB 11365-9415, Tehran 11365, Iran
[2] Univ British Columbia, Dept Math, Vancouver, BC V6T 1Z2, Canada
关键词
Oscillation; nonlinear self-adjoint differential equations; Lienard-type systems;
D O I
暂无
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Our concern is to solve the oscillation problem for the nonlinear self-adjoint equation (a(t)x')' + b(t)g(x) = 0, where g(x) satisfies the Signum condition xg(x) > 0 if x not equal 0, but is not imposed such monotonicity as superlinear or sublinear. The problem has not been solved for thecritical cases: [GRAPHICS] which are more difficult, by now. We concentrate our attention on this point and give some answers. Sufficient conditions are given for all nontrivial solutions to be oscillatory.
引用
收藏
页码:373 / 386
页数:14
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