Abstract. Lossy counter machines (LCM’s) are a variant of Minsky counter machines based on weak (or unreliable) counters in the sense that they can decrease nondeterministically ...
The problem of computing the chromatic number of a P5-free graph (a graph which contains no path on 5 vertices as an induced subgraph) is known to be NP-hard. However, we show tha...
We prove several decidability and undecidability results for -PN, an extension of P/T nets with pure name creation and name management. We give a simple proof of undecidability of...
We investigate the possibility of developing a decidable logic which allows expressing a large variety of real world specifications. The idea is to define a decidable subset of m...
Aharon Abadi, Alexander Moshe Rabinovich, Mooly Sa...
We investigate the decidability of observational equivalence and approximation in “Syntactic Control of Interference” (SCI). By asg denotations of terms in an inequationally fu...