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Numeration 2026 is the 2026 edition of a series of events around numeration systems and substitution systems. The central themes of this conference include (but are not limited to): number theory, diophantine approximation, fractal geometry, substitutions, combinatorics on words, ergodic theory, dynamical systems, and theoretical computer science.

Découvrir le programme
—  Conference website —
https://numeration2026.sciencesconf.org/

— Invited speakers (confirmed) —
Michael Baake, Bielefeld University, Germany
Ayreena Bakhtawar, Polish Academy of Sciences, Poland
Colin Faverjon, University of Picardy Jules Verne, Amiens, France
Lukas Spiegelhofer, Technical University of Leoben, Austria
Manon Stipulanti, University of Liège, Belgium

— Scientific Committee —
– Shigeki Akiyama, University of Tsukuba, Japan
– Valérie Berthé, IRIF, France
– Charlene Kalle, University of Leiden, Netherlands
– Lingmin Liao, University of Wuhan, China
– Edita Pelantová, Czech Technical University, Czech Republic
– Michel Rigo, University of Liège, Belgium
– Wolfgang Steiner, IRIF, France
– Cathy Swaenepoel, University of Paris Cité, France
– Jörg Thuswaldner, Technical University of Leoben, Austria

— Organizing Committee — 
– Cécile Dartyge (IECL, University of Lorraine, France)
– Damien Jamet (LORIA, University of Lorraine, France)
– Manfred Madritsch (Technical University of Leoben, Austria)
– Thomas Stoll (IECL, University of Lorraine, France)

— Past editions —
The previous « Numeration » conferences have been in:
– Tsukuba (2025)
– Utrecht (2024)
– Liège (2023, 2011)
– Vienna (2019)
– Paris (2018)
– Rome (2017)
– Prague (2016, 2008)
– Nancy (2015)
– Debrecen (2014)
– Kyoto (2012)
– Leiden (2010)
– Marseille (2009)
– Graz (2007)
– Grenoble (2005)

Geometric methods in computational complexity