Small and medium-sized enterprises are the foundation of China’s national economy, they important forces to promote economic social development. They play an irreplaceable role in promoting scientific technological progress, increasing employment, expanding foreign trade, other aspects which have become part socialist market economy. Based on research background international trade financing, t...

Abstract A brief review of methods in design experiments and criteria to determine space-filling properties a set samples is given. Subsequently, the so-called curse dimensionality sampling reviewed used as motivation for proposal an adaptation strata creation process Latin hypercube based on idea nested same-sized hypervolumes. The proposed approach places closer space boundaries, where higher...

The geometric hitting set problem is one of the basic geometric combinatorial optimization problems: given a set P of points, and a set D of geometric objects in the plane, the goal is to compute a small-sized subset of P that hits all objects in D. In 1994, Bronniman and Goodrich [6] made an important connection of this problem to the size of fundamental combinatorial structures called -nets, ...

We study the role of symmetries in control systems through geometric algebra approach. discuss two specific problems on Carnot groups step 2 invariant with respect to action S O ( 3 ) $$ SO(3) . understand geodesics as curves suitable algebras which allows us assess a new algorithm for local control.