Hilbert's 20th problem concerns the existence of solutions to the fundamental problem in the calculus of variations. I understand that Hilbert, Lesbesgue and Tonelli were pioneers in this area. In ...
Which man came up with the solution to the basic Calculus of Variations problem first? http://en.wikipedia.org/wiki/Euler-Lagrange Makes it sound like Lagrange got it first in 1755, then sent it to ...
Shortly after his work on the foundations of geometry David Hilbert turned his attention to finding a suitable statement of the Dirichlet principle, from which to prove the Riemann mapping theorem and ...