Enumeration of Decomposable Combinatorial Structures with Restricted Patterns

Decomposable combinatorial structures are studied with restricted patterns. We focus on the decomposable structures in the exp-log class. Using the method of analysis of singularities introduced by Flajolet and Odlyzko [5], we provide an estimate for the probability that a decomposable structure of size n has a given restricted pattern. We exemplify with several decomposable structures like permutations and polynomials over finite fields.      

Final distribution for Gani epidemic Markov processes

We consider the Kolmogorov equations for the transition probabilities of a three-dimensional Markov process of special form. For a stationary first equation, an exact solution is obtained using the Riemann method. We obtain asymptotics for the expectation and variance of the final distribution and establish a limit theorem.     

带扩散扰动项的广义双Poisson风险模型下的破产概率

本文首先在[1]-[4]讨论的基础上,将经典的破产模型推广到带扩散扰动项的广义双Po isson风险模型,即将保费收取过程和索赔总额过程同时推广到广义复合Po isson过程,以此解决在同一时刻有两张以上保单到达和两个以上顾客索赔的实际问题;接着运用鞅方法证明了破产概率满足的Lundberg不等式和一般公式在我们所建的模型下同样成立.     

The distribution of height and diameter in random non‐plane binary trees

This study is dedicated to precise distributional analyses of the height of non‐plane unlabelled binary trees (“Otter trees”), when trees of a given size are taken with equal likelihood. The height of a rooted tree of size n is proved to admit a limiting theta distribution, both in a central and local sense, and obey moderate as well as large deviations estimates. The approximations obtained for height also yield the limiting distribution of the diameter of unrooted trees. The proofs rely on a precise analysis, in the complex plane and near singularities, of generating functions associated with trees of bounded height. © 2011 Wiley Periodicals, Inc. Random Struct. Alg., 2012     

一种基于“把思想变成程序”的MIS自动生成系统

在分析管理信息系统传统功能、结构、开发过程、开发手段、交互方式的基础上并以“把思想变成程序”为目标，提出一个根据需求分析和详细设计的结果自动生成ＭＩＳ（管理信息系统）程序的自动生成系统，并阐述系统的设计和技术实现．文中所阐述的内容是已完成的科研课题的研究内容     

On a multivariable extension for the extended Jacobi polynomials

The main object of this paper is to construct a systematic investigation of a multivariable extension of the extended Jacobi polynomials and give some relations for these polynomials. We derive various families of multilinear and multilateral generating functions. We also obtain relations between the polynomials extended Jacobi polynomials and some other well-known polynomials. Other miscellaneous properties of these general families of multivariable polynomials are also discussed. Furthermore, some special cases of the results are presented in this study.