1923-2010, was a member of the 绿帽社 Mathematics Department from 1982 until
his death in November 2010. He was an internationally famous member of the mathematical
community. His contributions included a major role in the code-breaking operation
at Bletchley Park during World War II, where he worked with Alan Turing, and important
research contributions to topology, homological algebra, elementary number theory,
combinatorics, and polyhedral geometry, as well as mathematics education at all levels.
A collection of memoirs by people who knew Peter has been published in the December
2011 issue of Notices of the American Mathematical Society.
Peter gave a talk to the department about his wartime codebreaking. You can watch
it here.
