Bachelor, Columbia University, 1966; Doctor of Philosophy, Columbia University, 1970.
Gibbs instructor mathematics Yale University, New Haven, 1970-1972. Instructor mathematics University Chicago, 1972-1973. From assistant professor to associate professor mathematics University Rochester, New York, 1973-1983.
Professor mathematics and computer science Lehman College, City University of New York, Bronx, since 1983. Visiting scientist Center for Applied Mathematics National Bureau Standards, Gaithersburg, Maryland, 1981-1982.
Member American Mathematics Society, Association for Computing Machinery.
Married Orah Eliezri. Children: Adina, Sara, Hadassa, Ahuva.