Abstract
Inspired by the recent work Sahin and Agha gave recursion formulas for G(1) and G(2) Horn hypergeometric functions (Sahin and Agha in Miskolc Math Notes 16(2):1153-1162, 2015). The object of work is to establish several new recursion relations, relevant differential recursion formulas, new integral operators, infinite summations and interesting results for Horn's hypergeometric functions G(1), G(2) and G(3).