# Article

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Keywords:
comparison theorem; advanced argument; property (B)
Summary:
In this paper we compare the asymptotic behaviour of the advanced functional equation $L_nu(t)-F\big (t,u[g(t)]\big )= 0$ with the asymptotic behaviour of the set of ordinary functional equations $\alpha _iu(t)-F\big (t,u(t)\big )= 0.$ On the basis of this comparison principle the sufficient conditions for property (B) of equation (*) are deduced.
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