Abstract
The Miller-Ross-type Poisson distribution is an important model for plenty of real-world applications. In the present analysis, we study and introduce a new class of bi-univalent functions defined by means of Gegenbauer polynomials with a Miller-Ross-type Poisson distribution series. For functions in each of these bi-univalent function classes, we have derived and explored estimates of the Taylor coefficients vertical bar a(2)vertical bar and vertical bar a(3)vertical bar and Fekete-Szego functional problems for functions belonging to these new subclasses.