The creater of von Neumann's inequality, was what nationality?
Von Neumann's inequality In operator theory, von Neumann's inequality, due to John von Neumann, states that, for a fixed contraction "T", the polynomial functional calculus map is itself a contraction.
Richard Davis Anderson Richard Davis Anderson, Sr. (17 February 1922 – 4 March 2008) was an American mathematician known internationally for his work in infinite-dimensional topology. Much of his early work focused on proofs surrounding Hilbert space and Hilbert cubes.