Hermann Klaus Hugo Weyl, was a German mathematician, theoretical physicist, logician and philosopher. Although much of his working life was spent in Zürich, Switzerland, and then Princeton, New Jersey, he is associated with the University of Göttingen tradition of mathematics, represented by Carl Friedrich Gauss, David Hilbert and Hermann Minkowski.
Hermann Weyl
Hermann Weyl (left) and Ernst Peschl (right)
The Theory of Groups and Quantum Mechanics (translated from the second, revised German edition by Howard P. Robertson)
Temps, espace, matière (French, 1922)
David Hilbert was a German mathematician and one of the most influential mathematicians of the 19th and early 20th centuries. Hilbert discovered and developed a broad range of fundamental ideas including invariant theory, the calculus of variations, commutative algebra, algebraic number theory, the foundations of geometry, spectral theory of operators and its application to integral equations, mathematical physics, and the foundations of mathematics.
Hilbert in 1912
Hilbert in 1886
Hilbert in 1907
The Mathematical Institute in Göttingen. Its new building, constructed with funds from the Rockefeller Foundation, was opened by Hilbert and Courant in 1930.