Evènement pour le groupe Séminaire Méthodes Formelles

Date 2017-05-09  11:00-12:00
TitreWBTS: the new class of WSTS without WQO. 
RésuméWe present the ideal framework [FG09a,BFM14] which was recently used to obtain new deep results on Petri nets and extensions. If time, we will present the proof of the famous but unknown Erdös-Tarski theorem. We argue that the theory of ideals prompts a renewal of the theory of WSTS by providing a way to define a new class of monotonic systems, the so-called Well Behaved Transition Systems, which properly contains WSTS, and for which coverability is still decidable by a forward algorithm. 
OrateurAlain Finkel 
UrlLSV, ENS Cachan 

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