Stephanie B. Alexander

Stephanie Brewster Brewer Taylor Alexander (September 1, 1941 – November 20, 2023) was an American mathematician, a professor emerita of mathematics at the University of Illinois at Urbana–Champaign. Her research concerned differential geometry and metric spaces.

Education and career
Alexander earned her Ph.D. from UIUC in 1967, under the supervision of Richard L. Bishop, with a thesis entitled Reducibility of Euclidean Immersions of Low Codimensions. After joining the UIUC faculty as a half-time instructor, she became a regular faculty member in 1972. She retired in 2009 and died in 2023.

Books

 * With Vitali Kapovitch and Anton Petrunin, Alexander authored the book An Invitation to Alexandrov Geometry: CAT(0) Spaces (Springer, 2019).

Recognition

 * At Illinois, Alexander won the Luckman Distinguished Undergraduate Teaching Award and the William Prokasy Award for Excellence in Undergraduate Teaching in 1993.
 * In 2014 she was elected as a fellow of the American Mathematical Society "for contributions to geometry, for high-quality exposition, and for exceptional teaching of mathematics."