Professor of Mathematics

Alexander Hahn

B.S., Loyola University of Los Angeles, 1965
M.S., University of Notre Dame, 1968
Ph.D., University of Notre Dame, 1970

Areas of Expertise: Mathematics; History of Mathematics; Mathematics and Architecture; Orthogonal groups and other classical matrix groups both over fields and integral domains, and in number theoretic situations, and related structures


  • Mathematical Excursions to the World's Great Buildings (2012)

Recent Articles:

  • “The Classical Groups and K-Theory” (1989)
  • “Clifford Algebras and Arithmetic Witt Groups” (1991)
  • “The Zassenhaus Decomposition for the Orthogonal Groups: Properties and Applications” (2001)
  • “The Pendulum Swings Again: Mathematical Reassessment of Galileo's Experiments with Inclined Planes” (2002)
  • “Basic Calculus: From Archimedes to Newton to its Role in Science” (2002)

Office: 238 Hayes-Healy