The problem of extrapolating the perturbation series for dilute Fermi gas in three dimensions to unitary limit infinite scattering length and into BEC region is considered, using available strong-coupling information constrain extrapolation problem. In this constrained (CEP), goal find classes approximants that give well-converged results already low perturbative truncation orders. First, it sh...

Nonlinear constrained programing problem (NCPP) has been arisen in diverse range of sciences such as portfolio, economic management etc.. In this paper, a multiobjective imperialist competitive evolutionary algorithm for solving NCPP is proposed. Firstly, we transform the NCPP into a biobjective optimization problem. Secondly, in order to improve the diversity of evolution country swarm, and he...