5651442 dd30bbf6c34430808b1b66d1bba09d4a markronan http://gravatar.com/markronan markronan http://2.gravatar.com/avatar/dd30bbf6c34430808b1b66d1bba09d4a http://2.gravatar.com/avatar/dd30bbf6c34430808b1b66d1bba09d4a thumbnail Mark Ronan Mark Ronan markronan Emeritus Professor of Mathematics at the University of Illinois at Chicago, Honorary Professor of Mathematics at University College London