“…Motivated by several earlier results on connections between various subclasses of analytic and univalent functions, using hypergeometric functions, generalized Bessel functions, Struve functions, Poisson distribution series, and Pascal distribution series (see, for example, [12], [13][14][15], [7][8][9][16][17][18][19][20][21][22][23], [24]), we determine a necessary and sufficient condition for Υ m σ (z) to be in our class P k (λ, α). Furthermore, we give sufficient conditions for…”