Wolfgang Hahn (April 30, 1911 â January 10, 1998) was a German mathematician who worked on special functions, in particular orthogonal polynomials.
He introduced Hahn polynomials, Hahn difference, Hahn q-addition (or Jackson-Hahn-Cigler q-addition), and the HahnâÂÂExton q-Bessel function. He was an honorary member of the Austrian Mathematical Society.