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Erich Hecke was a Polish-born German mathematician whose best work was in analytic number theory.
MYSTERIES OF THE EQUILATERAL TRIANGLE - HIKARI Ltd
MYSTERIES OF THE EQUILATERAL TRIANGLE - HIKARI Ltd
Who's That Mathematician? Images from the Paul R. Halmos Photograph Collection
Erich Heckel, Portrait of Otto Mueller, 1930
Seshat : Charles Jean Gustave Nicolas de La Vallée Poussin
Seshat : Alexandre Alexandrovitch Friedmann
Seshat : Atle Selberg
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German Expressionist Prints: Erich Heckel (German, 1883-1970), later works
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ERICH HECKEL (1883-1970), Männerbildnis
Erich Heckel, Wounded Sailor (Verwundeter Matrose)