EntityQ15433104· pop 5· linked from 8 articlesStephen HalperinSign in to saveCanadian mathematicianConnectionsdigital object identifierEntityCornell UniversityEntityUniversity of TorontoEntityKingstonEntityUniversity of BonnEntityUniversity of MarylandEntityMathematics Genealogy ProjectEntityUniversity of LilleEntityUniversity of Nice Sophia AntipolisEntityIoan JamesEntityGraduate Texts in MathematicsEntityBulletin of the American Mathematical SocietyEntityloop spaceEntityTransactions of the American Mathematical SocietyEntityFellow of the Royal Society of CanadaEntityJeffery–Williams PrizeEntityPublications Mathematiques de l'IHESEntityIsrael HalperinEntityCategories1942 births20th-century Canadian mathematicians21st-century Canadian mathematiciansAcademic staff of the University of TorontoCanadian expatriate academics in the United StatesCornell University alumniFellows of the Royal Society of CanadaLiving peoplePeople from Kingston, OntarioScientists from OntarioTopologistsUniversity of Maryland, College Park faculty