Workshop on Internal Methods in Algebraic Geometry

University of Gothenburg/Chalmers
April 17-20, 2023

Other SAG meetings




Time Mon Tue Wed Thu
9:30 - 10:30 Felix Cherubini: Schemes Matthias Hutzler: Bundles of Modules Nicolas Beck: Fibered Categories Thierry Coquand: Justification of the Axioms
11:00 - 12:00 Matthias Hutzler: Projective Space Felix Cherubini: Cohomology Marc Nieper-Wißkirchen: Serre-Duality for Projective Space over a Field David Wärn: Differential Geometry
14:00 - 15:00 Thierry Coquand: Some comments on the definition of schemes Christian Sattler: Cubical Models David Wärn: Proper Schemes Joisselin Poiret: Formalization
15:30 - 16:30 Jonas Frey: Cartesian Spaces ??? Ingo Blechschmidt: Čech-Cohomology


All talks will be in the EDIT-Building on Johanneberg (Rännvägen 6).
The room will change a couple of times:

Time Mon Tue Wed Thu
9:30 - 10:30 ES52 EL43 EL43 forever
11:00 - 12:00 ES52 EL43
14:00 - 15:00 ES53 ES52
15:30 - 16:30 ES53 ES52


Ingo Blechschmidt University of Augsburg
Fabian Endres University of Augsburg
Matthias Hutzler University of Gothenburg
Felix Cherubini University of Gothenburg
Marc Nieper-Wißkirchen University of Augsburg
Thierry Coquand University of Gothenburg
David Wärn University of Gothenburg
Josselin Poiret ENS de Lyon
Lukas Stoll University of Augsburg
Nicolas Beck Freie Universität Berlin
Hugo Moeneclaey University of Gothenburg
Owen Miller Carnegie Mellon University
Jonas Frey Carnegie Mellon University
Amélia Liao


Finding Venue and Room

Don't be confused: There are two universities, Chalmers and the University of Gothenburg. The Computer Science and Engineering (CSE) department is shared between the two universities.
The meeting will be in the CSE department in Johanneberg, Gothenburg.
You can enter at Rännvägen 6 on Monday morning we will be in room ES52. ES52 is on the fifth floor (you usually enter at the third floor). An approximate position is marked on the map below. Just walk into the building and keep wandering around until you see signs pointing you toward this room.

Workshop Selfie

Local Transport in Gothenburg

Tickets for the tram can be bought with a credit card in yellowish shops called "Pressbyrån".
There is a good app "Västtrafik Togo", which might work with a credit card.
If it doesn't work with your credit card, you can still use it for planning and real time information.

Campus map

Random Local Information

The currency is SEK (not EUR). It is advisable to have a credit card to pay in Sweden and you should know your PIN. German EC-Cards with V-Pay are also known to work.

Travelling to Gothenburg

If you come from a member state of the EU, your national identity card is enough to enter the country - make sure it is not out of date, it might be checked, even if you travel to Sweden by train or bus.


There are ships from and to Germany and Denmark (Fredrikshavn).



Gothenburg has an international Airport, Landvetter/GOT. Gothenburg is about 4h by train from Stockholm and Copenhagen (which have bigger airports). From the airport, you can use the bus, and choose anything of the suggestions on the right, to end up in the city (the last option is the main train station):

Enivronmental impact

Apart from the obvious, it is unlcear how to rank the ships/ferries. According to some sources, they are worse than flying, if you split emissions by money spent and use an (expensive) overnight ship.