EntityQ1808137· pop 6· linked from 23 articlesLaurent C. SiebenmannSign in to saveFrench mathematicianPerson · Open LibraryBorn1939Works1Top worksThe obstruction to finding a boundary for an open manifold of dimension greater than fiveTopology '90Foundational Essays on Topological Manifolds, Smoothings, and Triangulations. (AM-88), Volume 88The obstruction to finding a boundary for an open manifoldLe fibre tangentvia Open Library + WikidataMusic · MusicBrainzTypeGroupCountryJPActive from2005-06-13Active to2017-06-12via MusicBrainz · CC0Key datesBorn1 January 1939via Wikidata · CC0Wikidata factsInstance ofhumanGiven nameLaurentGendermaleCitizenshipFrancePlace of birthTorontoOccupationtopologistEducated atPrinceton UniversityEmployerUniversity of Paris-SudLanguages spokenFrenchAwardCNRS silver medalConnectionsFranceCountrymathematicsEntityCategories1939 births20th-century French mathematiciansAcademic staff of Paris-Sud UniversityCanadian mathematiciansFellows of the American Mathematical SocietyLiving peoplePrinceton University alumniScientists from TorontoTopologistsUniversity of Toronto alumni