In this paper,Steiner minimal trees for point sets with special structure are studied. These sets consist of zigzag lines and equidistant points lying on them.
By means of generating function and partial derivative methods, we investigate and establish several general summation formulas involving two classes of polynomials. The general results would apply to yield some ident...By means of generating function and partial derivative methods, we investigate and establish several general summation formulas involving two classes of polynomials. The general results would apply to yield some identities for the Pell polynomials and Pell-Lucas polynomials, and other general polynomials can also be recovered in this paper.展开更多
Gamma distribution nests exponential, chi-squared and Erlang distributions;while generalized Inverse Gaussian distribution nests quite a number of distributions. The aim of this paper is to construct a gamma mixture u...Gamma distribution nests exponential, chi-squared and Erlang distributions;while generalized Inverse Gaussian distribution nests quite a number of distributions. The aim of this paper is to construct a gamma mixture using Generalized inverse Gaussian mixing distribution. The </span><i><span style="font-family:Verdana;">rth</span></i><span style="font-family:Verdana;"> moment of the mixture is obtained via the </span><i><span style="font-family:Verdana;">rth</span></i><span style="font-family:Verdana;"> moment of the mixing distribution. Special cases and limiting cases of the mixture are deduced.展开更多
we prove the local existence and uniqueness of a moving boundary prob- lem modeling chemotactic phenomena. We also get the explicit representative for the moving boundary in a special case.
基金Supported by NSF of China(1 970 1 0 2 8) and National973Fundamental Research Project
文摘In this paper,Steiner minimal trees for point sets with special structure are studied. These sets consist of zigzag lines and equidistant points lying on them.
文摘By means of generating function and partial derivative methods, we investigate and establish several general summation formulas involving two classes of polynomials. The general results would apply to yield some identities for the Pell polynomials and Pell-Lucas polynomials, and other general polynomials can also be recovered in this paper.
文摘Gamma distribution nests exponential, chi-squared and Erlang distributions;while generalized Inverse Gaussian distribution nests quite a number of distributions. The aim of this paper is to construct a gamma mixture using Generalized inverse Gaussian mixing distribution. The </span><i><span style="font-family:Verdana;">rth</span></i><span style="font-family:Verdana;"> moment of the mixture is obtained via the </span><i><span style="font-family:Verdana;">rth</span></i><span style="font-family:Verdana;"> moment of the mixing distribution. Special cases and limiting cases of the mixture are deduced.
文摘we prove the local existence and uniqueness of a moving boundary prob- lem modeling chemotactic phenomena. We also get the explicit representative for the moving boundary in a special case.
