Let A be a 2p-element set, p prime, and let be a fixed point-free permutation on A of order p. We study the interval of clones C on A such that C consists of functions that are s...
We define general algebraic frameworks for shortest-distance problems based on the structure of semirings. We give a generic algorithm for finding single-source shortest distances...
Minimal parallelism was recently introduced [3] as a way of using the rules of a P system: from each set of applicable rules associated to a membrane, at least one rule must be ap...