His current research is in the areas of infinite - dimensional Lie algebras and vertex algebras .
Lepowsky graduated from Stuyvesant High School in 1961 , 16 years after Kostant .
Lepowsky 's current research is in the areas of infinite - dimensional Lie algebras and vertex algebras .
Lepowsky graduated from Stuyvesant High School in 1961 , 16 years after Kostant .