Mathematical Institute Newsletter
October 2004
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Toren Academiegebouw

The Mathematical Institute Newsletter is maintained by Jan-Hendrik Evertse. The newsletter is issued the first week of each month, except for July and August. The electronic version of the newsletter can be found on
(go to the homepage of the Mathematical Institute and click on "Newsletter").

Copy for the November newsletter, such as announcements, personal notes, visits to conferences, guests (with place of origin and date of arrival and departure), lectures of general interest, Ph.D. thesis defenses (with title of thesis), etc. should be sent by e-mail to evertse at before October 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

  • Ph.D. thesis defense by Leila Mohammadi on Wednesday October 6
    Leila Mohammadi will defend her Ph.D. thesis on Wednesday October 6 at 4:15 pm in the Academiegebouw, Rapenburg 73.
    Title: Estimation of tresholds in classification
    Promotor: Prof. Sara van de Geer.
    Copromotor: Dr. Franz Merkl.

  • Intercity Number Theory Seminar on Friday October 8
    The Intercity Number Theory Seminar of Friday October 8 meets in Leiden. The following lectures have been scheduled:

    10:45-11:45    Tarlok Shorey (Tata Institute): Powers in products of terms of an arithmetic progression
    12:00-  1:00  Bas Jansen (Leiden): Classical Iwasawa Theory
      2:00-  4:00  Bill Hart (Leiden): What is the non-commutative Iwasawa Main Conjecture?

    For further information see the webpage of the Intercity Number Theory Seminar,

  • Science Day on Sunday October 24
    The Science Day 2004 is on Sunday October 24. In the framework of this, the University of Leiden organizes several activities of interest to both children and adults. These activities consist of experiments and demonstrations in which attendees are encouraged to participate, as well as (Dutch) lectures of general interest. The main theme of the activities in Leiden is "Use your brains" (Gebruik je hersens). For further information (in Dutch) see For activities organized by the Faculty of Sciences click on Wiskunde en Natuurwetenschappen.

  • First year exams
    One year ago, the universities of Delft and Leiden started a common Mathematics curriculum. The following students from Leiden have passed the exam of the first year of this new curriculum (MP means that the student passed the first year exams of both Mathematics and Physics):

    A. Aleman
    J.W.M. Beenakker (MP)
    B. Benthem (MP)
    D.B. Biesheuvel
    H.P. Chang (MP)
         J.T. van Essen
    R. de Jong (MP)
    M.H.P. Kleuskens
    A. Krul
    D. Marjenburgh (MP)
         M. Roelands
    S.B. Roobol (MP)
    Z. Tanovic' (MP)
    K. van Vuurden
    D.J. van Well

  • Master's programme ALGANT (ALgebra, Geometry And Number Theory) gets Erasmus Mundus grant
    The universities of Bordeaux, Leiden and Padova have established a common Master's programme in algebra, geometry and number theory, called Erasmus Mundus Master ALGANT. This programme has been awarded financial support from the Erasmus Mundus fund.
    Erasmus Mundus has been established by the European Union to make European higher education more appealing to students outside the EU. Erasmus Mundus supports common Master's programmes offered by consortia of universities from different EU countries.
    Altogether 128 consortia have applied for an Erasmus Mundus grant, among which 7 consortia with Dutch participation. From those, 19 consortia were selected, 7 of which had Dutch participation. Each selected consortium receives 86 full stipends for talented students outside the EU over a period of five years, as well as EU. 15,000 for additional expenses. Stipendees are required to follow courses from at least two universities from the consortium.
    For further information see
    ALGANT-Algebra, Geometry and Number Theory (pdf file)

  • Workshops at the Lorentz Center
    October 4-8: PGM 2004-Probabilistic Graphical Models 2004
    Coordinators: P.J.F. Lucas, N.A. el Moustakim (Nijmegen).
    See for an overview of all Mathematics workshops at the Lorentz Center in 2004.

  • General Colloquium
    November 4:   Prof. Willem van Zwet (Leiden): TBA

    For further information, see

  • Guests of Robert Tijdeman:
    - Prof. Tarlok Shorey (Tata Institute, Mumbay, India) is visiting our institute from September 1-October 15 to work together with Robert Tijdeman. On October 8 he gives a lecture at the Intercity Number Theory Seminar (see above).
    - Dr. Clemens Fuchs (Technische Universität Graz) is visiting our institute for one year starting with September 1.

Visits/lectures outside our institute

- Peter Stevenhagen: He will visit the University of California at San Diego from October 2-11 to cooperate with Joe Buhler. On October 7, he will give a colloquium lecture, titled "Efficient construction of elliptic curves," see for further information.
On October 15 he will give a lecture at the Universität Erlangen-Nürnberg, titled "Escher und der Droste-Effekt," see for further information.
- Jelle Goeman, Georgia Hadjicharalambous, Leila Mohammadi, Bernadetta Tarigan, Sara van de Geer and Erik van Zwet: They will attend the workshop "Notions of Complexity" at EURANDOM, Eindhoven from October 7-9. Leila will give a talk about estimation of thresholds and Sara will give a talk about adaptive support vector machines. For further information on this workshop, see
- Bert Peletier: He will visit Boston University, Boston from October 17-21 and Rutgers University, New Brunswick NJ from October 21-29.
- Bas Edixhoven: He will visit the university of Rennes (France) on October 29.

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