
doi: 10.1007/bf01762513
The number of nonoscillatory solutions of a forced second order linear differential equation is studied under the hypothesis that the homogeneous equation is oscillatory. The main technique involves expressing a general solution of the forced equation in terms of two parameters, given a pair of independent solutions of the homogeneous equation (see (2.4) below).
homogeneous equation, Linear ordinary differential equations and systems, variation of parameters, oscillation, Oscillation theory, zeros, disconjugacy and comparison theory for ordinary differential equations
homogeneous equation, Linear ordinary differential equations and systems, variation of parameters, oscillation, Oscillation theory, zeros, disconjugacy and comparison theory for ordinary differential equations
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