Gelfand-Hille theorems for cesàro means

The growth conditions on the powers in the Gelfand-Hille theorems can be replaced by the same conditions on the Cesàro means, retaining the conclusions. Moreover, the assumptions can be further weakened on one of the two sides.     

超静定钢筋混凝土拱的非线性分析

本文提出一个超静定钢筋混凝土拱的非线性分析方法．这个方法从结构塑性分析的基本原理 出发，考虑了材料的非线性性能，采用了曲杆单元刚度矩阵，变刚度迭代法，杆件截面的数值积 分，断面最大弯矩值的计算以及应力迁移等方法对拱的受荷全过程进行了非线性分析。根据这个 计算方法，编制了相应的计算机程序并进行电算分析，其结果与实测值相比较，两者符合尚好。     

Stress intensity factors for a finite plate with an inclined crack by boundary collocation

In this paper, we combine the Muskhelishvili＇s complex variable method and boundary collocation method, and choose a set of new stress function based on the stress boundary condition of crack surface, the higher precision and less computation are reached. This method is applied to calculating the stress intensity factor for a finite plate with an inclined crack. The influence of θ （the obliquity of crack） on the stress intensity factors, as well as the number of summation terms on the stress intensity factor are studied and graphically represented.     

On Gravitational Radiation Graviton Number Density: Application to a Nambu String

A formalism is developed to compute the number density of gravitons, of specified energies, produced by an arbitrary external energy-momentum tensor source at any temperature. The formalism is applied to a simple Nambu string without making the usual assumption of a long wavelength approximation (L.W.A.). This exact result is also compared to the L.W.A.