Workshop on Nonlinear Lattice Dynamics

14-16 July 2026, University of Leiden, Netherlands

In dedication to Michael Herrmann

Scope and Goal of Workshop

This workshop event is being held to honor the memory of our friend and collaborator Michael Herrmann who passed away unexpectedly in July 2024. The workshop will be centered around the intersection of Michael's wide interests in applied analysis, dynamical systems, and mathematical modeling, with a natural emphasis on nonlinear wave propagation, pattern formation and phase transformation phenomena, broadly conceived.

Michael Herrmann (1973–2024) was a professor of mathematics at TU Braunschweig whose life and work left a lasting mark on applied analysis, dynamical systems, and mathematical modeling. Renowned for his fundamental contributions to wave propagation in lattices and phase-transforming systems with hysteresis, his research combined deep analytical insight with careful numerical experimentation and close international collaboration. Educated in Berlin and shaped by formative years at Humboldt University, the Weierstraß Institute, Oxford, and academic posts in Saarland and Münster, Michael spent the final seven years of his career at TU Braunschweig, where he was a highly respected colleague and mentor. He was deeply engaged in the applied mathematics community remaining scientifically active until his passing. Equally dedicated to teaching, Michael was admired for his clarity, generosity with his time, and unwavering support of students. Remembered for his sharp intellect, warmth, and distinctive sense of humor, he is greatly missed as a scientist, teacher, collaborator, and friend. More on Michaels life and work can be found on his obituary.

Tentative speaker list

Martina Chirilus-Bruckner, Leiden University

Timothy Faver, Kennesaw University

Johannes Giannoulis, University of Ioannina

Mark Hoefer, University of Colorado Boulder

Guillaume James, Grenoble Institute of Technology

Jan-Patrick Meyer, TU Braunschweig

Barbara Niethammer, University of Bonn

Simone Paleari, Università degli Studi di Milano Statale

Bob Pego, Carnegie Mellon University

Jens Rademacher, University of Hamburg

Vassilis Rothos, University of Thessaloniki

Guido Schneider, University of Stuttgart

Pat Sprenger, University of California, Merced

Anna Vainchtein, University of Pittsburgh

Doug Wright, Drexel

Johannes Zimmer, TU Munich

Registration

Registration is free but mandatory for planning purposes. Register here by 31 May 2026.

Venue information

The workshop will take place at Leiden University, The Netherlands. Detailed room information will follow.

Social Dinner

We are about to arrange a social dinner on July 14th, at the approximative costs of ~50 EUR per participant. Details and a separate dinner signup and pre-payment link will follow in due time.

Travel and Hotel Information

By air
The easiest international arrival point is Amsterdam Schiphol Airport (AMS). Frequent direct trains from Schiphol take about 15–20 minutes to Leiden Centraal Station.

By train
Leiden is well connected by Dutch rail. Trains from Amsterdam, The Hague, and Rotterdam stop at Leiden Centraal, which is a short walk from university venues.

Local transport
Leiden’s city centre and most campuses are easily walkable from the train station. Buses and bikes are also convenient ways to get around.

By car
Leiden lies between the A4 and A44 highways and offers parking garages near the city centre.

Visa & entry
Visitors should check Dutch entry requirements and visas appropriate for their nationality before booking travel. Please contact the organizers if you require written confirmation of your participation.

Hotel:

People attending the workshop can get a discount at the following hotel.

Ibis Leiden Centre

Stationsplein 240-242 – 2312 AR Leiden – The Netherlands

To get the discount the participants need to email their reservation request to H8087-RE@accor.com and mention the reference code "Uni Workshop HJH 14/07".

Organizers:

Christopher Chong, Bowdoin College

Carina Geldhauser, ETH Zurich

Hermen Jan Hupkes, Leiden University

Panayotis Kevrekidis, UMass Amherst

Karsten Matthies, University of Bath

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