A very good mathematician, and a great guy.
Gareth Ainsworth and David Treeby, both now teaching at Scotch, and both former students of Robert (and me), have emailed quick reminiscences.
This is sad news indeed. I credit Robert with sparking my pursuit of higher level mathematics at university.
Robert was always very generous with his time in helping me with my honours project. Marty, you’ll be appalled to know that the only thing I remember though, was when in the margins of a newspaper he showed me how handheld calculators never perform division.