Robert Kantrowitz '82, professor and chair of mathematics, was a speaker at the Summer Symposium in Real Analysis held this year at The College of Wooster in Ohio, July 13-17. His talk, "Banach algebra norms for spaces of functions of generalized bounded variation," centered around collections of functions of bounded variation that have been known for some time to constitute complete normed linear spaces.

Kantrowitz showed that such spaces are also stable under multiplication and that the interaction of products with the norm is predictable. The spaces thereby carry an additional layer of algebraic and analytic structure.