
handle: 1880/48790 , 1880/108406
Existence of positive solutions for advanced equations with several terms is investigated in the following three cases: (a) all coefficients ak are positive; (b) all coefficients ak are negative; (c) there is an equal number of positive and negative coefficients. Results on asymptotics of nonoscillatory solutions are also presented.
Oscillation theory of functional-differential equations, QA1-939, Mathematics
Oscillation theory of functional-differential equations, QA1-939, Mathematics
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