Eberhard Hermann Erich Zeidler[1] (6 October 1940 in Leipzig, Germany – 18 November 2016 ibid) was a German mathematician, who worked primarily in the field of non-linear functional analysis.
In 1961, he was exmatriculated because of critical statements, and was forced to work as a transport worker and absolve his military service in the East-German's NVA.
(PhD) with his work "Über eine Klasse nichtlinearer singulärer Randwertaufgaben der Funktionentheorie mit Symmetrieverhalten" under Herbert Beckert [de].
From 1992 to 1996, he was head of the DFG research group on "Nichtlineare Funktionalanalysis und ihre Anwendungen" (Nonlinear functional analysis and its applications), and from 1992 to 2000 he was a member of the scientific advisory board of the Mathematisches Forschungsinstitut Oberwolfach.
[2] In 1996, Eberhard Zeidler became the first managing director of the Max Planck Institute for Mathematics in the Sciences when it was founded in Leipzig.