János Bolyai Mathematical Institute is the institute of mathematical departments at the faculty of sciences of the University of Szeged, named after the Hungarian mathematician, co-discoverer of non-euclidean geometry, János Bolyai. Its director is László Kérchy. Among the former members of the institute are Frigyes Riesz, Alfréd Haar, Rudolf Ortvay, Tibor Radó, Béla Szőkefalvi-Nagy, László Kalmár, Géza Fodor.