His University of Michigan PhD dissertation on " Boundary Functions, " a 75-page tour de force that advisers called remarkable, would be incomprehensible to all but a few people.
12.
One of his articles, " Boundary Functions for Functions Defined in a Disk, " was published in the Journal of Mathematics and Mechanics in 1965, and another, " On a Boundary Property of Continuous Functions, " appeared in the Michigan Mathematics Journal in 1966.
13.
He is one of the first artists to work with projector-based interactivity, where a computer-controlled projection onto a wall or floor changes in response to people moving across its surface, with his well-known full-body interactive work " Boundary Functions " ( 1998 ), premiering at Ars Electronica 1998.
