I was born in Waltdorf (Nysa, Poland) and was a student at Hamburg University, working under Wilhelm Blaschke.
I was appointed Professor of Mathematics in Königsberg, then later filled positions at many other universities.
I have served as supervisor to great mathematiciansKurt Leichtweiss and Gerhard Ringel....plus both of my sons became mathematicians
World War II interupted my mathematics rseearch, as I was assigned to work with the German Navy's Weather Service.
My claim to fame is my Theorem that says "the size of an antichain in the power set of an nset is at most the middle binomial coefficient"...which probably does not mean anything to you!
However, it is my Lemma to the Theorem that is getting recent attention: "every ***** coloring of a triangulation of an ndimensional simplex contains a cell colored with a complete set of colors"...which provides a direct proof of the morefamous Brouwer fixedpoint theorem.
As a final hint, my Lemma is the basis of the decisionmaking solution for fair rent allocations, as discussed in this week's website review....
Answer:
Emanuel Sperner (1905  1980)
