Logics and graphs/automata/sequences
The obstructions of a minor-closed set of graphs defined by a context-free grammar.
Joint work with B. Courcelle.
(Discrete Maths 1998).
Iterated pushdown automata and sequences of rational numbers.
Joint work with S. Fratani.
(APAL 2006 - Special issue dedicated to the " 2nd Logic Days at St Petersburg ")
Sequences of level 1, 2, 3,..., k,...
LNCS 4649 - Proceedings of CSR 2007
Marin's Master thesis,
2007 (quoted in above paper)
given at CSR 2007.
Words and trees
Talk given at the Workshop in Honour of Hubert Comon-Lundh, 18-19 November 2008, Cachan
Word-mappings of level 2.
Joint work with J. Ferté and N. Marin.
(Submitted to TOCS in Februray 2012)