What Greek mathematician who spend most of his professional life in Germany lends his name to the Vitali–Carathéodory theorem?
Vitali–Carathéodory theorem In mathematics, the Vitali–Carathéodory theorem is a result in real analysis that shows that, under the conditions stated below, integrable functions can be approximated in L from above and below by lower- and upper-semicontinuous functions, respectively. It is named after Giuseppe Vitali and Constantin Carathéodory.
Marion Walter Marion Walter (born July 30, 1928 in Berlin, Germany) is a mathematician who retired as Professor of Mathematics at University of Oregon in 1994. There is a theorem named after her, called Marion Walter's theorem.