EntityQ522384· pop 10· linked from 25 articlesRobert FruchtSign in to saveCzech-born German and Chilean mathematician specializing in the symmetries of graphs (1906–1997)ConnectionsChileCountryArgentinaCountryCzech RepublicCountryBerlinEntityValparaísoEntityJewish peopleEntityInternational Standard Book NumberEntityBrnoEntityAustria–HungaryEntityTriesteEntitydigital object identifierEntitygroup theoryEntitygraph theoryEntityHumboldt-Universität zu BerlinEntitygraphEntitydifferential geometryEntityJSTOREntitybibcodeEntityJoshua LederbergEntityactuaryEntityCategories1906 births1997 deaths20th-century Chilean mathematicians20th-century German mathematiciansCzech JewsGerman emigrants to ChileGraph theoristsHumboldt University of Berlin alumniJewish emigrants from Nazi Germany to ChileMathematicians from BerlinPeople from the Margraviate of Moravia