In this work we present a result about the approximation of the k-th derivative of a function by means of a linear operator under assumptions related to shape preserving properties. As a consequence we deduce new resu...In this work we present a result about the approximation of the k-th derivative of a function by means of a linear operator under assumptions related to shape preserving properties. As a consequence we deduce new results about the Meyer-K?nig and Zeller operators.展开更多
本文主要讨论有单位元1（≠0）的IBN环R上的n秩自由模M上关于环R的自同构δ的R—半自态（?）在M的不同的R—自由基下矩阵间的一种关系。1 已有结果设M是有单位元1（≠0）的IBN环R上的n秩自由模,δ是环R的自同构,U={ui}<sub>1</...本文主要讨论有单位元1（≠0）的IBN环R上的n秩自由模M上关于环R的自同构δ的R—半自态（?）在M的不同的R—自由基下矩阵间的一种关系。1 已有结果设M是有单位元1（≠0）的IBN环R上的n秩自由模,δ是环R的自同构,U={ui}<sub>1</sub><sup>n</sup>是M的R—自由基,（?）是M上关于δ的R—半自同态。则有:1.1 因（?）（ui）∈M,故（?）（ui）=sum from j-1 to n aijuj,aij∈R,（?）记〔（?）（ui）〕U=（ai<sub>1</sub>,ai<sub>2</sub>,…,ai<sub>n</sub>）为（?）（ui）在基U下的坐你,显见〔（?）（ui）〕U是唯一确定的。展开更多
First of all, the concept of γ_p_S a_S m_N (confidence level_reliability_stress amplitude_stress mean_fatigue life) surface is presented. Then the formulas of p_S a_S m_N surface and γ_p_S a_S m_N ...First of all, the concept of γ_p_S a_S m_N (confidence level_reliability_stress amplitude_stress mean_fatigue life) surface is presented. Then the formulas of p_S a_S m_N surface and γ_p_S a_S m_N surface are derived. In addition, fatigue strength distribution function and two_dimensional reliability Miner rule are obtained. At last, an example is given.展开更多
基金Junta de AndalucíaGrupo de Investigación Approximacióny Métodos Numéricoscódigo FQM 0 1 78.
文摘In this work we present a result about the approximation of the k-th derivative of a function by means of a linear operator under assumptions related to shape preserving properties. As a consequence we deduce new results about the Meyer-K?nig and Zeller operators.
文摘本文主要讨论有单位元1（≠0）的IBN环R上的n秩自由模M上关于环R的自同构δ的R—半自态（?）在M的不同的R—自由基下矩阵间的一种关系。1 已有结果设M是有单位元1（≠0）的IBN环R上的n秩自由模,δ是环R的自同构,U={ui}<sub>1</sub><sup>n</sup>是M的R—自由基,（?）是M上关于δ的R—半自同态。则有:1.1 因（?）（ui）∈M,故（?）（ui）=sum from j-1 to n aijuj,aij∈R,（?）记〔（?）（ui）〕U=（ai<sub>1</sub>,ai<sub>2</sub>,…,ai<sub>n</sub>）为（?）（ui）在基U下的坐你,显见〔（?）（ui）〕U是唯一确定的。
文摘First of all, the concept of γ_p_S a_S m_N (confidence level_reliability_stress amplitude_stress mean_fatigue life) surface is presented. Then the formulas of p_S a_S m_N surface and γ_p_S a_S m_N surface are derived. In addition, fatigue strength distribution function and two_dimensional reliability Miner rule are obtained. At last, an example is given.
