On the Boundedness Problem for Higher-Order Pushdown Vector Addition Systems

Petri Nets, Vector Addition Systems (VAS), and Vector Addition Systems with control states (VASS) are equivalent well-known classes of counter systems for which the reachability

In more details, we define a notion of VAS coverability graphs that will constitute the models of our logic (Section 2) and investigate their simulation relations; we define an

Thanks to this approximation and since reachability sets are almost semilinear we finally prove in Section 9 that the vector addition system reachability problem can be decided

In order to estimate a music source at a given time-frequency point, KAM involves selecting a set of time-frequency bins, which, given the nature of the target source, e.g.,

We showed that the time needed for this process results principally from the vis- cous flow of the fluid into or out of the gap between pairs of almost contacting particles: it

In his view the centre of a school system should be an academic core for all students at different levels demanding disciplined learning under excellent

There is two kind of results: lemmas about reachability preservation by rewriting strategies, and corollaries about reduction of reachability decision problem for certain classes

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