Oscillation Criteria for Second-Order Linear Differential Equations
Oscillation Criteria for Second-Order Linear Differential Equations
ZEEV NEHARIX->« X-»°°H ille showed that g*^l/4, g*Hl if (1) is nonoscillatory, and g*2il/4 if the equation is oscillatory, where all the inequalities are sharp.In the present paper we shall develop more general oscillation criteria which will contain Hille's criteria as special cases.The basic idea used is the fact that …