Ernst Peschl

Ernst Ferdinand Peschl
Ernst Peschl (right), next to Hermann Weyl
Born	(1906-09-01)1 September 1906 Passau, Bavaria, German Empire
Died	9 June 1986(1986-06-09) (aged 79) Eitorf, West Germany
Residence	Germany
Citizenship	German
Fields	Geometric complex analysis, Partial differential equations, Multivariable complex analysis
Institutions	University of Münster University of Jena University of Bonn Institute of Mathematics, Bonn
Alma mater	University of Munich
Thesis	Über die Krümmung von Niveaukurven bei der konformen Abbildung einfachzusammenhängender Gebiete auf das Innere eines Kreises; eine Verallgemeinerung eines Satzes von E. Study ("On the curvature of level curves in the conformal mapping of simply connected domains to the interior of a circle: A generalization of a theorem of Eduard Study") (1931)
Doctoral advisor	Constantin Carathéodory
Doctoral students	Claus Müller Friedhelm Erwe Karl Wilhelm Bauer Bernhard Korte Stephan Ruscheweyh Karl-Joachim Wirths
Notable awards	Pierre Fermat Medal (1965) Medal of the University of Jyväskylä (1965) Officier des Palmes Académiques (1975)
Spouse	Maria Stein (m. 1940–76) (her death)
Children	Gisela Piehl

Ernst Ferdinand Peschl (1 September 1906 – 9 June 1986) was a German mathematician.

Ernst Peschl came from a family of brewery owners. He was born to Eduard Ferdinand Peschl and his wife, Ulla (née Adler) in 1906.

After finishing secondary school in 1925 in Passau, Peschl started studying mathematics, physics, and astronomy in Munich. He received his doctorate in 1931 from the University of Munich under the supervision of Constantin Carathéodory with a dissertation titled Über die Krümmung von Niveaukurven bei der konformen Abbildung einfachzusammenhängender Gebiete auf das Innere eines Kreises; eine Verallgemeinerung eines Satzes von E. Study ("On the curvature of level curves of the conformal mapping of simply connected domains to the interior of a circle: A generalization of a theorem of Eduard Study"). This was followed by some years spent working as an assistant with Robert König in Jena and Heinrich Behnke in Münster. He habilitated in 1935 at the University of Jena. Peschl took up a visiting professorship at the University of Bonn in 1938, and was subsequently promoted to extraordinary professor there.

Under pressure Peschl became a member of the Nazi Party and the paramilitary Sturmabteilung, but he avoided any activity within either organization and ended SA service after a year. From 1941 to 1943 he was drafted as a French interpreter for the Wehrmacht. From 1943 to 1945 he worked at the German Aviation Research Institute in Brunswick, which exempted him from further military service during World War II.