What mathematician died on Valentine’s Day and what major item is he known for?

Answer 1

Though, you are probably looking for Catalan, there are 4 famous mathematicians who have died on Valentine's Day. I listed them all below.


1744 - "John Hadley was an English instrument maker who improved the Gregorian reflecting telescope and invented the quadrant for navigation."

1894 - "(Eugene Charles) Catalan defined the numbers called after him, while considering the solution of the problem of dissecting a polygon into triangles by means of non-intersecting diagonals."

1943 - "(David) Hilbert's work in geometry had the greatest influence in that area after Euclid. A systematic study of the axioms of Euclidean geometry led Hilbert to propose 21 such axioms and he analysed their significance. He made contributions in many areas of mathematics and physics."

2001 - "Helmut Wielandt worked on finite groups and on finite and infinite permutation groups."

Answer 2

David Hilbert died on Feb 14, 1943. He was a German mathematician, known for many things, including quantum mechanics and general relativity.