Here’s an “On The Same Day” that must be hitting the math world hard:
George B. Dantzig Dies at 90; Devised Math Solution to Broad Problems
While making calculations for the Air Force in 1947, Dr. Dantzig developed the simplex algorithm, which enabled mathematicians, economists and others to consider large numbers of variables in broad-reaching decisions about the production and allocation of airplanes, their parts and raw materials.
Leonid Khachiyan Is Dead at 52; Advanced Computer Math
In his paper “A Polynomial Algorithm in Linear Programming,” Dr. Khachiyan proposed using an ellipsoid algorithm in approaching theoretical problems believed to be too demanding for the simplex method, and “turned the field on its head,” said Dr. Michael D. Grigoriadis, a professor of computer science at Rutgers.
So here we have two innovators, one of whom is 38 years older than the other, the older handing off work of genius in a highly specialized field for the other to improve, dying on the same day.
If you take a plane today, or buy a stock or use anything with steel in it, you have been affected by what these two did before they died.