# LSV Seminar

The LSV seminar takes place on Tuesday at 11:00 AM. The usual location is the conference room at Pavillon des Jardins (venue).
If you wish to be informed by e-mail about upcoming seminars, please contact Stéphane Le Roux and Matthias Fuegger.

The seminar is open to public and does not require any form of registration.

## Past Seminars

### Asynchronous Distributed Automata: A Characterization of the Modal Mu-Fragment

- Date
- Tuesday, February 21 2017 at 11:00AM
- Place
- Salle de Conférence (Pavillon des Jardins)
- Speaker
- Fabian Reiter (IRIF, Université Paris Diderot)

I will present the equivalence between a class of asynchronous
distributed automata and a small fragment of least fixpoint logic,
when restricted to finite directed graphs. More specifically, the
considered logic is (a variant of) the fragment of modal μ-calculus
that allows least fixpoints but forbids greatest fixpoints. The
corresponding automaton model uses a network of identical finite-state
machines that communicate in an asynchronous manner and whose state
diagram must be acyclic except for self-loops. As a by-product, the
connection with logic also entails that the expressive power of those
machines is independent of whether or not messages can be lost.