Strangeness enhancement (SE) in heavy ion collisions can be understood in the statistical model on the basis of canonical suppression. In this formulation, SE is a consequence of the transition from canonical to the asymptotic grand canonical limit and is predicted to be a decreasing function of collision energy. This model predictions are consistent with the recent NA49 data on Λ enhancement a...

This paper presents a canonical dual approach for minimizing a sum of quadratic function and a ratio of nonconvex functions in R. By introducing a parameter, the problem is first equivalently reformed as a nonconvex polynomial minimization with elliptic constraint. It is proved that under certain conditions, the canonical dual is a concave maximization problem in R that exhibits no duality gap....

By using the canonical dual transformation developed recently, we derive a pair of canonical dual problems for 0-1 quadratic programming problems in both minimization and maximization form. Regardless convexity, when the canonical duals are solvable, no duality gap exists between the primal and corresponding dual problems. Both global and local optimality conditions are given. An algorithm is p...

We present a program package to generate homogeneous random graphs with probabilities prescribed by the user. The statistical weight of a labeled graph α is given in the form W(α)=∏Ni=1 p(qi), where p(q) is an arbitrary user function and qi are the degrees of the graph nodes. The program can be used to generate two types of graphs (simple graphs and pseudo-graphs) from three types of ensembles ...

in order to have a successful breeding program, it is important to determine the relationship among the traits. this study was conducted at research farm of isfahan university of technology to evaluate relationships among some of the agronomic and physiological traits and grain yield of ten bread wheat cultivars in optimum and stress moisture (irrigation after 70±3 and 130±3 mm evaporation from...

fourteen different morphological traits in 169 and 131 cattle of oulmes-zaer and tidili, respectively were recorded and analyzed using a multivariate approach. the characters measured included heart girth, wither height, rump height, rump length, rump width, chest depth, body length, neck length, cannon circumference, ear length, ear width, head length, horn length and tail length. breed signif...

Abstract Principles of morphotactics are a major source morphological diversity amongst the world’s languages, and it is well-known that languages exhibit many different types deviation from canonical ideal in which there unique consistent mapping between function form. In this paper we present data Murrinhpatha (non-Pama-Nyungan, northern Australia) demonstrates type non-canonical so far unatt...

1.1. Exponential and general models. For an exponential model, suppose φ and s are the canonical parameter and canonical variable, with {1, φ1(θ), . . . , φp(θ)} linearly independent. . If not an exponential model, a third order approximation is available using φ′(θ) = (∂/∂V )`(θ; y)|y0 where V = (v1, . . . , yp) are inference directions at y. If these directions V are not obvious, they can be ...

We derive the thermodynamic entropy of the mean field φφ6 spin model in the framework of the micro-canonical ensemble as a function of the energy and magnetization. Using the theory of large deviations and Rugh's micro-canonical formalism we obtain the entropy and its derivatives and study the thermodynamic properties of φφ6 spin model. The interesting point we found is that like φ4 model the e...

A general formula for the canonical partition function for a system obeying any statistics based on the permutation group is derived. The formula expresses the canonical partition function in terms of sums of Schur functions. (1990)] for parasystems of order two is shown to arise as a special case of our general formula. Our results also yield all the relevant information about the structure of...