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Themain object of this paper is to find necessary and sufficient conditions for generalized Bessel functions of first kind zup(z) to be in the classes SPp(α, β) andUCSP(α, β) of uniformly spiral-like functions and also give necessary and sufficient conditions for z(2−up(z)) to be in the above classes. Furthermore, we give necessary and sufficient conditions forI(κ, c)f to be inUCSPT(α, β) provided that the functionf is in the classRτ(A, B). Finally, we give conditions for the integral operatorG(κ, c, z) = ∫ 0 (2−up(t))dt to be in the classUCSPT(α, β). Several corollaries and consequences of the main results are also considered.

On Subclasses of Uniformly Spiral-like Functions Associated with Generalized Bessel Functions