Using R-dual modules we obtain an exact sequence of ExtnR(M,R) and show that for a coherent left perfect ring R,the finitely presented dimensions of ExtmR(M,R),m≥0 is less than that of M,which generalizes the corresponding result in[1].
利用R-偶模得到了ExtnR(M,R)的正合列,证明了在凝聚左完全环R下,ExtRm(M,R),(m≥0)的有限表示维数不超过M的有限表示维数,推广了文献[1]的结果。
Using U-dual modules obtain an exact sequence of ExtnR(M,U),and show that for a right coherent ring R,or a coherent left perfect ring R,the flat dimensions,projective dimensions and finitely presented dimensions of ExtmR(M,U)(m≥0) are less than the corresponding dimensions of M.
设SUR为双模,给出了投射模的U-偶模为平坦模,投射模等特殊模的若干刻画,并利用U-偶模得到了关于Ex tnR(M,U)的正合列,从而证明了在右凝聚环、凝聚左完全环下,Ex tmR(M,U)(m≥0)的平坦维数、投射维数、有限表现维数等均不超过M的相应维数。
The dipole mode in triangular photonic crystal single defect cavity is degenerate.
三角晶格排列的光子晶体微腔中的偶极模式是简并的,通过改变其晶格的对称性可以消除模式简并。
And then a design method of this kind of filters using an odd-mode and even-mode impedance of coupled-lines calculating programme and ADS (advanced design system) simulation software is presented.
在介绍此种滤波器传统设计方法的基础上,结合实例介绍一种利用耦合微带线奇偶模阻抗计算程序并结合ADS(Advanced Design System)仿真设计软件设计此种滤波器的方法。
human courtship patterns
人类求偶模式 人类求偶模式
That is because it breaks up optimal mating patterns.
那是因为它打破了理想的配偶模式。
Semi-dualizing Modules and Related Gorenstein Homological Dimensions;
半对偶模及相关Gorenstein同调维数
Dual Module and FP-selfinjective Dimension over Coherent Ring;
凝聚环上的对偶模与FP-自内射维数
THE GENERALIZED VECTOR VARIATIONAL INEQUALITIES AND THE GENERALIZED DUAL MODELS
广义向量变分不等式和广义对偶模型
Some Researches on Dimensions of Dual Modules and the Class of n-Presented Modules
关于偶模的维数与n-表示模类的若干研究
Wakamatsu Tilting Modules and Dual Theory;
Wakamatsu倾斜模和对偶理论
Projected SD-pair Shell Model:Collectivity of Low-lying State for Even-even Ba Isotopes
投影SD对壳模型:偶偶Ba核低激发谱性质
Fuzzy approximate solution of dual fully fuzzy linear systems
对偶完全模糊线性系统的模糊近似解
The Conuclei of Quantale Modules and the Dual Bimodule of Quantale
Quantale模的余核映射及Quantale上的对偶双重模
The Duality between Subcategories Induced by Higher Dimendsional Cotilting Modules;
高维cotilting模诱导的子范畴对偶
The Procedure Model of Serendipitous Innovation and an Analysis on Inducing Factors;
偶发性创新过程模型及激发因素分析
Structure Model and Function of Azoreductase AZR
偶氮还原酶AZR的结构模型与功能研究
Dipole model method for dielectric electromagnetic scattering analysis
介质体电磁散射的偶极子模型法研究
G-Protein-Coupled Receptor 120-GPR120:Molecular Modeling Studies
G-蛋白偶联受体GPR120分子模建研究
Approximate Analytical Solution of Vortices with Quantum n=90-110 in Dual Superconductor Model
对偶超导模型n=90—110的近似解析解
These are all models of equivalent dipole based on a single slice of time.
这些都是基于瞬态等效偶极子模型的算法。
and some marionettes can be made to imitate almost every human and animal action.
某些提线木偶几乎能模仿人和动物的所有动作。
