Mathematical Institute Newsletter
January 2003
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Toren Academiegebouw

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Copy for the newsletter of February, such as announcements, personal notes, visits to conferences, guests, lectures of general interest, should be sent by e-mail to before January 27. Copy should be submitted in English plaintext, so that it can be inserted into the newsletter without time consuming typing or translating work.

Agenda and announcements

  • Farewell reception for Chris Zaal on January 17
    Chris Zaal has been working for our institute since 1999. He was responsible for all activities concerning public relations and the propagation of mathematics. Further he was employed by the Wiskundig Genootschap (Pythagoras, Nieuw Archief). On January 1, 2003 he leaves our institute, to take a new position at the Freudenthal Institute of the University of Utrecht. On occasion of his departure, the Mathematical Institute will offer him a reception.
    Time: Friday January 17, 4:00 pm
    Place: Room 176, Mathematical Institute, Niels Bohrweg 1, Leiden.

  • General Colloquium
    Thursday January 23, 4:00 pm, room 174
    Prof.dr. S.J. Edixhoven (Universiteit Leiden): Counting solutions of systems of equations over finite fields.

Personal notes

  • New employees:

    Permanent faculty

    - dr. M.F.E. de Jeu (ud), per January 1, 2003, research group Analysis (Prof.dr. S. Verduyn Lunel)
    "I am working as assistant professor in the group of Sjoerd Verduyn Lunel since January 1, 2003. Leiden is my home university: I studied here and obtained my PhD under supervision of Gerrit van Dijk and Eric Opdam. My research has a functional analytic angle and covers topics in representation theory, special functions, approximation theory and probability theory. Previously I have been affiliated with M.I.T., Paris VII, the Ministry of Transport and Water Management and the University of Amsterdam.
    Groet, Marcel."

    - dr. F. Merkl (ud), per January 1, 2003, research group Probability Theory and Mathematical Statistics (Prof.dr. S.A. van de Geer)

  • Departed:
    - drs. C.G. Zaal, per January 1, 2003, to Freudenthal Institute in Utrecht.

  • Guests:
    Guest of Prof.dr. G. van Dijk:
    - V.F. Molchanov (Tambov, Russia) will visit our institute from December 2 - February 2.

    Guest of Prof.dr. R. Tijdeman:
    - Dr. T. Herendi (Debrecen, Hungary) will visit our institute and the CWI (Amsterdam) from January 20-31.


  • Working visits/visits to conferences:
    - J.-H. Evertse will be in Debrecen (Hungary) from January 6-17, 2003.
    - R. Tijdeman will be in Debrecen from January 6-13 and in Budapest from January 13-15.

  • Technical reports:
    MI 2002-28   M. Bertsch, R. van der Hout and E. Vilucchi
    A Minimal Solution for a Singular Parabolic Problem
    MI 2002-29   Marta Fiocco and Willem R. van Zwet
    Environmental influences on the spatial distribution of plant species

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