Trefftz Workshop 2026

7–9 September 2026 · Vienna, Austria

A Century of Trefftz Methods

Trefftz methods are numerical techniques for solving differential equations using basis functions that satisfy the underlying equations. This tailored approach often leads to higher efficiency compared to traditional methods.

Marking 100 years since Erich Trefftz’s seminal 1926 paper, this workshop will celebrate a century of Trefftz methods and look ahead to the future of Trefftz-inspired research.

The workshop is jointly organized by Christoph Lehrenfeld (University of Göttingen) and Paul Stocker (University of Vienna).

Previous Trefftz workshop was held in 2024 · Oaxaca, Mexico.

Registration is now closed. For any questions, please get in touch.

Invited Speakers

Confirmed participants

  • Tobias Born (University of Ulm)

  • Anna Broms (Imperial College London)

  • Théophile Chaumont-Frelet (Inria Lille)

  • Moritz Gallauner (University of Vienna)

  • Sergio Gomez (University of Milano-Bicocca)

  • Jakub Grabski (Poznan University of Technology)

  • Samantha Glory Guiate Simo (University of Göttingen)

  • Astrid Herremans (KU Leuven)

  • Andrea Lagardere (Airbus)

  • Alexei Lozinski (Laboratoire de Mathématiques de Besançon)

  • Markus Melenk (TU Wien)

  • Armando Maria Monforte (University of Pavia)

  • Emile Parolin (Inria)

  • Chiara Perinati (University of Pavia)

  • Ilaria Perugia (University of Vienna)

  • Evan Rabineau (ISAE-Supaero/ONERA)

  • Jochewed Schmeck (OvGU)

  • Sébastien Tordeux (EPC INRIA Makutu, INRIA-UPPA-CNRS)

  • Igor Tsukerman (The University of Akron)

  • Tim van Beeck (University of Göttingen)

  • Igor Voulis (University of Göttingen)

  • Andreas Wurzinger (Graz University of Technology)

  • Long Yuan (Shandong University)

  • Enrico Zampa (University of Vienna)

  • Umberto Zerbinati (University of Oxford)

Location

The workshop takes place at the Campus of the University of Vienna

in the room Aula (see Campus map) located at

Spitalgasse 2, 1090 Vienna. (Google maps)

It is reachable by public transport:

Tram lines 43, 44, 5 stop at Lange Gasse

Timetable

The detailed scientific programme will be announced closer to the workshop. The preliminary structure is as follows.

Time Monday, 7.9. Tuesday, 8.9. Wednesday, 9.9.
08:30–09:00 Registration
09:00–12:00 Morning session
incl. coffee break		 Morning session
incl. coffee break		 Morning session
incl. coffee break
12:00–14:00 Lunch break
self-organized		 Lunch break
self-organized		 Lunch break
self-organized
14:00–17:30 Afternoon session
incl. coffee break		 Afternoon session
incl. coffee break		 Afternoon session
and closing
Evening Conference dinner

Acknowledgements

We gratefully acknowledge the support of our sponsors: the Austrian Science Fund (FWF) Grant ESP4389824 and the University of Göttingen.

FWF Logo
University of Göttingen Logo
as well as the hospitality of the University of Vienna. University of Vienna Logo