Robion Kirby

Robion Kirby is a prominent American mathematician known for his work in the field of topology, particularly in low-dimensional topology and knot theory. He has made significant contributions to our understanding of 3-manifolds and has been involved in developing techniques for studying and classifying these mathematical objects. Kirby is perhaps best known for the "Kirby diagram," which is a way to represent a 4-manifold using embedded disks in a 3-manifold.