Master of Science, Chalmers University of Technology, Göteborg, 1977. Doctor of Philosophy in Mathematics, Chalmers University of Technology, Göteborg, 1990.
Mechanic,, Volvo, Göteborg, 1978-1982; researcher, Mittag-Leffler Institute, Stockholm, 1989; researcher, University of Southern California, Columbia, 1990; assistant professor, Chalmers, Göteborg, 1991; assistant professor, U. Karlskrona/Ronneby, Sweden, since 1992.
Member Swedish Mathematics Society, American Mathematics Society, Swedish Society Inventors.
Married Doris Marie Nielsen, October 10, 1980. Children: Allan, Jesper, My, Erika.