Constantin CarathéodoryConstantin Carathéodory (; 13 September 1873 – 2 February 1950) was a Greek mathematician who spent most of his professional career in Germany. He made significant contributions to real and complex analysis, the calculus of variations, and measure theory. He also created an axiomatic formulation of thermodynamics.
He was remembered by his colleagues as a respectable and cultured man. Provided by Wikipedia