Home page of Marcel de Jeu


E-mail address:remove the "2'' in mdejeu2@math.leidenuniv.nl
Home page: http://www.math.leidenuniv.nl/~mdejeu/
Postal address: Mathematical Institute
Leiden University
P.O. Box 9512
2300 RA Leiden
The Netherlands
Visiting address: Niels Bohrweg 1
2333 CA Leiden
The Netherlands
Office number: 218
Office telephone number: +31 71 527 7118
General telephone number: +31 71 527 7111
General fax number: +31 71 527 7101


Research interests

I have written a number of papers on special functions associated with root systems, approximation theory, (complex and real) Paley-Wiener theory, and local spectral theory. My current focuses are on the interplay between topological dynamical systems and algebras of crossed product type, and, notably, also with my current PhD-students Marten Wortel and Miek Messerschmidt, on representation theory of algebras and groups in Banach lattices. Marten will defend his thesis on April 18, 2012,


Publications

Since a number of years I have uploaded my papers to the arXiv, which is naturally more up to date than MathSciNet.


Past and upcoming events

Summer School on Noncommutative Integration, Leiden, June 9 - 13, 2008.
Workshop Operator Structures and Dynamical Systems, Leiden, July 21 - 25, 2008 (satellite of 5 ECM). The proceedings appeared in 2009 in the Contemporary Mathematics series of the AMS.
The SIGMA Special Issue on Dunkl Operators and Related Topics, for which I was one of the guest editors, was completed in June 2009.
The Positivity VII conference will be from Monday July 22 through Friday July 26, 2013, at the campus of Leiden University. Positivity 7 is organised as a joint venture between Leiden University and Delft University of Technology. I chair the organisation committee of this Zaanen Centennial Conference, in honour of Adriaan Cornelis Zaanen (1913-2003).


Teaching Spring 2012

I'll be teaching Analyse 4 (complex analysis), the home page of which can be found in Blackboard.


Teaching Fall 2012

Amongst others, I'll be teaching the national master course on functional analysis again, together with Onno van Gaans. It provides you with a broad basis in functional analysis beyond the introductory level. See the course description at the Mastermath web site for more information. You need to have taken an introductory functional analysis course prior to this one. Measure and integration theory is not a formal prerequisite, but it does help.


Functional Analysis Seminar

In Spring 2012 there will be a seminar on tensor products of Banach spaces, based on Ryan's book "An introduction to tensor products of Banach spaces" (Springer, 2002). Students can participate for 6 EC. If you want to join, drop me a note (as several students already have!), and make sure you take the national master course in functional analysis first.

I ran a number of functional analysis seminars in the past period, for faculty, PhD-students and students (depending on the issue):

In the 2005 seminar we concentrated on spectral theory and operator algebras.
The 2006 seminar was about Banach space theory.
In the 2007 seminar the emphasis was on operator theory.
In 2007-2008 we covered most of the book by Albiac and Kalton on Banach space theory.
In 2008-2009 was devoted to Meyer-Nieberg's book on Banach lattices; the twin seminar in Delft was on noncommutative probability.
In 2009-2010 the seminar was based on Kaniuth's "A course in commutative Banach algebras".
In 2010-2011 we used Engel's and Nagel's "A short course on operator semigroups".
In Fall 2011 a joint Leiden/Delft seminar was dedicated to Choquet theory, based on Phelps' book.

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