# GALaC team seminar

The GALaC team seminar is organized on a regular basis on Friday at 14:00 in the PCRI building (650) at LISN.

## Recent and up-coming seminars

## Complexity of positional games

summary: Positional games are two-player games played on a hypergraph. The players alternate selecting vertices of the hypergraph, and the winning conditions depend solely on the filling of the hyperedges. Tic-tac-toe is a famous example of a positional game, with the rows, columns, and diagonals forming the hyperedges and the ...

## The Domino Snake Problem

summary: Deep within the swamp of undecidability lies the elusive domino snake. This species, first discovered in the 1970s by Myers, was originally introduced as an a priori simpler problem than the now celebrated Domino Problem. In this talk we will take a tour through what is known about this ...

## The fixed-point construction in tilings

summary: Consider a tileset, i.e. a finite set of colors along with some adjacency constraints between them. It defines the set of colorings of the infinite grid that respects these adjacency constraints. Such a coloring is called a tiling. Given a tileset as input, a question naturally arises: does ...

Translations: fr