nonlinear second order differential equations;
oscillation;
D O I:
10.1090/S0002-9939-98-04354-8
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
In the case of oscillatory potentials, we give sufficient conditions for the oscillation of the forced super-linear equation x "(t) + a(t)\x(t)\(v) sgn x(t) = g(t). This answers a question raised by J. S. W. Wong.