Dear friends of mathematics,

mathematical hike 49, to which we cordially invite you, will take place on Saturday May 24th 2025. Meet at 9:30 at the tram 1 terminus in Řečkovice.

The route is 20 km along hiking paths and also following some roadways, with the finish back in Řečkovice.

More precisely:
- From Řečkovice to Mokrá Hora, then along the red trail through Lelekovice to the Babí lom lookout tower and to Kuřim.
- From Kuřim to the Baba Nature Park, through it to Řečkovice.
You can end your participation also after 13 km in Kuřim, from where it is possible to return to Brno by train or bus.

Looking forward to see you,

Pavel Francírek and Jonatan Kolegar, organizers

If you have questions, send them to This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Lectures between 31.3. - 3.4.2025, DMS building (M4, M5 and seminar room, 2nd floor )

Jonathan Kirby

Model Theory, Exponentiation and Quasiminimality

Mon 31.3. 14:00-15:00 (seminar room, 2nd floor)
Tue 1.4. 11:00-12:00 (M4)
Wed 2.4. 14:00-15:00 (M5)
Thu 3.4. 10:00-11:00 (seminar room, 2nd floor)

Abstract: Model Theory is a way of looking at mathematical concepts which is sensitive to the choice of language we use to describe them. One of its achievements is to classify different mathematical theories according to their complexity. In this series of talks I will survey some of the work done towards understanding the model theory of exponential fields, including the real exponential and Zilber’s approach to the complex exponential field. We know from Wilkie that the real exponential field is not too complicated (it is o-minimal) and this has good consequences in geometry, in number theory, and even in machine learning. For the complex exponential, we do not know if it is tame (quasiminimal) or whether it is maximally complicated (interpreting both reals and integers). I will explain progress towards proving that it is tame.

CaLiForNIA kick-off conference

Time: Monday, 27 January - Thursday, 30 January, 2025

Venue: Brno, Czech Republic, hotel Continental

Since 2024, we are proudly part of one of the Brussels financed doctoral networks. Now, all 11 doctoral students (two of them with us in Brno) are on board and the Masaryk University is hosting the kick-off meeting of the project.

The programme collects the introductory lectures of all 11 supervisors, some more contributed talks, and further activities (including the exhibition Women in Mathematics from around the world. A gallery of portraits - https://womeninmath.net/).

The details will be updated on the conference pages: https://conference.math.muni.cz/california-msca/.

Here is the preliminary list of the lectures of all supervisors (programme in PDF):

• E. Bekkers: Group equivariant graph neural networks
• R. Ó Buachalla: Noncommutative geometry and quantum groups
• A. Cattaneo: Palatini Cartan gravity
• E. Ercolessi: Geometry of quantum states for efficient quantum computation
• R. Fioresi: Sheaf theory and information geometry in understanding parameter and data spaces in group equivariant graph neural networks
• E. Latini: Holography and conformal YM equation
• M.A. Lledo: Continuous spin representation of the Poincaré group
• K. Neusser: Rigid geometric structures and Cartan connections
• A. Perez-Canelas: Quantum Simulations
• J. Slovák: Tractor calculus views towards the geometric control theory problems
• K. Strung: C*-algebra models for quantum spaces

Everybody is welcome to join the zoom meetings with all the lectures: https://cesnet.zoom.us/j/91825173477?pwd=G3S8TTbLPkY2yqZtNSZCFoBpwLtDjM.1 (or come to the individual talks in the hotel Continental meeting room).

Dear friends of hikes and mathematics,

you are cordially invited to the 48th mathematical hike planned on Saturday 21st of December. Meet at 9:18 at the "Anthropos" bus stop.

The hike is about 10 km long, we will go uphill towards the observation tower Holedná. We also invite you to our traditional mathematical carol-singing. (lyrics in czech, though)


Looking forward to see you,

Pavel Francírek and Jonatan Kolegar, organizers

If you have questions, send them to This e-mail address is being protected from spambots. You need JavaScript enabled to view it .