|1966||Bachelor's degree (kandidaatsexamen) in Mathematics & Physics with Astronomy, University of Amsterdam.|
|1970||Master's degree (doctoraalexamen) in Pure Mathematics (cum laude), University of Amsterdam.|
|1975||Doctor's degree in Pure Mathematics, University of Amsterdam.
Thesis title: Elliptic curves defined over imaginary quadratic number fields. A diophantine approach.
Thesis supervisor: Prof. dr F. Oort.
Much of the research done for this dissertation took place during my stay at the Mathematical Institute of Oxford University (UK) in 1969.
|1966 - 1971||Lecturer of Pure Mathematics, Department of Mathematics, The University of Manchester, Manchester, UK|
|1969 (Spring and Summer)||Visitor of the Mathematical Institute of Oxford University (UK) as PhD student of Prof. B.J. Birch, MA, PhD, FRS|
|1971 - 1975||Assistant Professor of Mathematics, Econometric Institute, Erasmus University Rotterdam, NL|
|1975 - 2005||Associate Professor of Mathematics, Econometric Institute, Erasmus University Rotterdam, NL|
|2005 - present||Associate Professor of Mathematics(retired), Econometric Institute, Erasmus University Rotterdam, NL|
|1987 (Summer)||Visiting Professor of Mathematics & Computer Studies, Department of Mathematics, Webster University, St. Louis, Missouri, USA|
|1984 - present||Adjunct Professor of Mathematics and Computer Studies, Webster University, Leiden campus, Leiden, NL|
|1996||Umbra Erasmi penning (medal), Erasmus University.|
|2004||Certificate of Appreciation for 20 years of dedicated and successful teaching, Webster University.|
|2005||Koninklijke onderscheiding (Queen's Honours for Service to Mathematics): Ridder in de Orde van Oranje-Nassau.|