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Keywords:
linear differential equation; quasi-derivative; monotone solution; Kneser solution; oscillatory solution
linear differential equation; quasi-derivative; monotone solution; Kneser solution; oscillatory solution
Summary:
The paper deals with the oscillation of a differential equation $L_4y+P(t)L_2y+Q(t)y\equiv 0$ as well as with the structure of its fundamental system of solutions.
References:
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