Tilings of the plane by translation show interesting regularity in the disposition of the tiles: in particular, we point out that in the case of a single tile, the obtained congur...
In a reputation-based trust management system an entity’s behaviour determines its reputation which in turn affects other entities interaction with it. We present a mathematical...
A family of mathematical models of nondeterministic data flow is introduced. These models are constructed out of sets of traces, successes, failures and divergences, cf. Hoare’s...
We give faster algorithms for two methods of reducing the number of states in nondeterministic finite automata. The first uses equivalences and the second uses preorders. We deve...