I. M. Singer
Copyright © 2009 Mathematisches Forschungsinstitut Oberwolfach (Photo ID: 12826.)
Left to right: Lily and Michael Atiyah, I. M. Singer and Friedrich Hirzebruch on the occasion of Atiyah's 80th birthday celebration, April 20--22,
2009, Edinburgh. Photographer: Gert-Martin Greuel.
