模糊乘积的“失效”与“失真”的一个判定

给出模糊乘积"失真"的充要条件,并讨论模糊乘积的"失效"与"失真"的关系.     

模糊乘积的"失效"与"失真"的一个判定

给出模糊乘积"失真"的充要条件,并讨论模糊乘积的"失效"与"失真"的关系.     

在《概率论与数理统计》教学实践中反思《高等数学》教学

通过对概率论与数理统计课程的教学实践进行深入挖掘,从内容和思想方法两个方面探索了《高等数学》与《概率论与数理统计》课程之间的关系.内容方面主要体现在离散型随机变量与无穷级数、连续型随机变量和积分、最大似然估计和最值理论等方面,而思想方法方面主要体现在利用微积分的重要思想建立概率统计中的相关概念和相关理论.通过对两门课程的关系进行梳理,一方面可以更好的进行概率统计课程的教学,同时也可以为高等数学教学提供有益的借鉴.     

"Freezing" and "defreezing" effects in the photoelastic investigation of temperature stresses

The "freezing" and "defreezing" temperature limits of an optically active material based on an epoxy resin have been experimentally investigated. A method of determining the mean value of the optical coefficient when the material is heated on the "freezing" temperature range is considered. The lower "defreezing" temperature limit has been experimentally established. The results of the investigation are presented in the form of graphs.Translated from Mekhanika Polimerov, No. 3, pp. 501–506, May–June, 1976.     

Splicing and the Casson invariant

We establish a formula for the Casson invariant of spliced sums of homology spheres along knots. Along the way, we show that the Casson invariant vanishes for spliced sums along knots in .

     

C^1 C^2 INTERPOLATION OF SCATTERED DATA POINTS

In this paper an error in [4] is pointed out and a method for constructing surface interpolating scattered data points is presented, The main feature of the method in this paper is that the surface so constructed is polynomial, which makes the construction simple and the calculation easy.     

Vertex partitions of (C3,C4,C6)-free planar graphs

A graph is $(k_1,k_2)$-colorable if it admits a vertex partition into a graph with maximum degree at most $k_1$ and a graph with maximum degree at most $k_2$. We show that every $(C_3,C_4,C_6)$-free planar graph is $(0,6)$-colorable. We also show that deciding whether a $(C_3,C_4,C_6)$-free planar graph is $(0,3)$-colorable is NP-complete.