Workshop on Partial Differential Equations,

Calais, May 16, 2018,

on the occasion of the retirement of our colleague Joachim von Below.


14:00   J. A. Lubary (Universitat Polytècnica de Catalunya, Barcelona): Eigenvalue multiplicities for the Laplacian on metric graphs.

14:50   I. Wood (University of Kent, Canterbury): A functional model for maximally dissipative operators.

Abstract: We introduce an abstract framework for a maximally dissipative operator A and its anti-dissipative adjoint and use this framework to construct the selfadjoint dilation of A using the Straus characteristic function. The advantage of this construction is that the parameters arising in the dilation are explicitly given in terms of parameters of A (such as coefficients of a differential expression). The abstract theory will be illustrated by the example of dissipative Schrodinger operators.

15:40   Coffee break.

16:10   D.Mugnolo (FernUniversität in Hagen): Can one hear the shape of a network? - Twenty years after.

17:00   S.Nicaise (Université de Valenciennes et du Hainaut-Cambrésis): Dynamical boundary/interface conditions on ramified spaces.

This program may still be subject to modifications, in particular with respect to the timetable.

Where will the conference take place?

The conference will take place in Calais, in room B014 on the campus "la Mi-Voix" of the Université du Littoral.

This room is located in the ground floor of the building connected to the low, round, red-brick tower on the campus (see below). When you enter this tower, B014 is the first room on the right-hand side.

Image of the building where the conference will take place.


Isabelle Buchard (, Secrétariat LMPA / LISIC / UDSMM, Université du Littoral Côte d'Opale,

Mabel Cuesta (, Paul Deuring (, Laboratoire de Mathématiques Pures et Appliquées Joseph Liouville, Université du Littoral Côte d'Opale .

Last update of this page on April 15, 2018.