This is a preview. Log in through your library . Abstract New criteria for the oscillatory or nonoscillatory behavior of ordinary, linear differential equations of second order and the location of ...
In this paper we shall prove the following theorem: Let K be a differential field of characteristic zero. Let φ and ψ be elements of a differential field extension of K such that (i) φ ≠0 and ψ ≠0; ...
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