Meet Our Mathematics Faculty Dr. Michael Catalano Professor of Mathematics Email Phone: (605) 995-2669 Tracy Dice Associate Professor of Business and Economics Email Phone: (605) 995-2711 Ashley Digmann Education Department Chair Email Phone: (605) 995-2891 Mike Farney Professor Emeritus, mathematics Email Phone: (605) 995-2675 Joan Lubben Professor in the Department of Mathematics Email Phone: (605) 995-2672