Workshop: Motivic and non-commutative aspects of enumerative geometry

Monday 3 July 2023, 9 am - Wednesday 5 July 2023, 6 pm

This workshop is organized around the themes of using refined invariants of algebraic varieties to study enumerative questions, with ideas coming from motivic homotopy theory, quadratic enumerative geometry, hermitian K-theory and beyond.

Companion conference

In the second half of the same week, Wednesday 5 to Friday 7 July 2023, there will be a conference on:

in honour of Bjørn Ian Dundas' 60th birthday at the same location. The two events will have one shared day (Wednesday) with talks that fit both topics, and participants are encouraged to attend both.

Monday 3 July 2023, 9 am - Wednesday 5 July 2023, 6 pm
Tom Bachmann (Oslo), Denis-Charles Cisinski (Regensburg), Yonatan Harpaz (Paris), Marc Hoyois (Regensburg), Fangzhou Jin (Shanghai), Hana Jia Kong (Princeton), Marc Levine (Essen), Tasos Moulinos (Paris), Thomas Nikolaus (Münster), Sabrina Pauli (Essen), Charanya Ravi (Bangalore), Marco Robalo (Paris), Oliver Röndigs (Osnabrück), Location: Radboud University Nijmegen
Contact information

Organiser(s): Simon Pepin Lehalleur, Steffen Sagave, Lenny Taelman


Please use this registration form to register for this workshop and/or the companion conference. Registration is open until 4 June or until the maximal number of participants is reached. You should register no later than 15 May if you would like to apply for financial support. The first talk of the workshop starts on Monday 3 July at 09:30 and the last talk ends on Wednesday 5 July at 17:30, followed by a conference dinner that evening.

We did not block hotel rooms for participants and advice you to book your hotel early. Here are some options for hotels in the city center of Nijmegen:

Child- and family care

Since childcare opportunities provided by Radboud University focus on long term support, the organisers will work with local childcare providers to help participants in need of childcare during the workshop and conference. If you need childcare during the workshop and/or conference, please contact us at maths [at]"noopener" target="_blank" before 1 June.