EntityQ20180377· pop 5· linked from 20 articlesHorst HerrlichSign in to saveGerman mathematicianConnectionsmathematicsEntityBerlinEntityVancouverEntityInternational Standard Book NumberEntityBremenEntitydigital object identifierEntityFreie Universität BerlinEntitycategory theoryEntityFelix HausdorffEntityMathematics Genealogy ProjectEntityhabilitationEntityInternational Congress of MathematiciansEntitygeneral topologyEntityUniversity of BremenEntityActa MathematicaEntityBulletin of the American Mathematical SocietyEntityAlexander DinghasEntityJeremy GrayEntityCategories1937 births2015 deaths20th-century German mathematicians21st-century German mathematiciansAcademic staff of the University of BremenCategory theoristsFree University of Berlin alumniTopologists