This paper is to study the distribution property of Lehmer DH number by use the estimation of general Kloostermann sum and the estimation of trigonometric sum.
There are a variety of e-commerce development modes. Free mode as one of the most important has been widely applied in e-commerce enterprises, and it has become one of the basic methods for ensuring e-commerce enterpr...There are a variety of e-commerce development modes. Free mode as one of the most important has been widely applied in e-commerce enterprises, and it has become one of the basic methods for ensuring e-commerce enterprises to seek a development. In this paper, the current development of the free mode is firstly analyzed and also the factors influencing users to make a choice are analyzed under the free business model, and then the problems in free e-commerce model are proposed, and finally related strategies and suggestions on how to develop for e-commerce enterprises under the free business model are provided. Keywords:展开更多
基金Supported by the Education Commission Science Foundation of Shaanxi(OOJK123)
文摘This paper is to study the distribution property of Lehmer DH number by use the estimation of general Kloostermann sum and the estimation of trigonometric sum.
文摘There are a variety of e-commerce development modes. Free mode as one of the most important has been widely applied in e-commerce enterprises, and it has become one of the basic methods for ensuring e-commerce enterprises to seek a development. In this paper, the current development of the free mode is firstly analyzed and also the factors influencing users to make a choice are analyzed under the free business model, and then the problems in free e-commerce model are proposed, and finally related strategies and suggestions on how to develop for e-commerce enterprises under the free business model are provided. Keywords: