In a recent paper, we have studied associative realizations of the noncommutative extended Snyder model, obtained by including Lorentz generators (tensorial coordinates) and their conjugated momenta. this extend result to also incorporate covariant realization $\kappa$-Poincar\'e spacetime. We obtain coproduct, star product twist in Weyl-ordered realization, first order noncommutativity paramet...

The generalized traveling salesman problem (GTSP) is an extension of the well-known traveling salesman problem. In GTSP, we are given a partition of cities into groups and we are required to find a minimum length tour that includes exactly one city from each group. The aim of this paper is to present a new memetic algorithm for GTSP which clearly outperforms the state-of-the-art memetic algorit...