基本释义:

单射维数

网络释义

1)injective dimension,单射维数

2)injective dimension,内射维数

3)projective dimension,投射维数

4)projective dimension,射影维数

5)fractionally integrated,分数维单整

6)filament denier,单纤维旦数

用法和例句

Injective Dimension under Flat Base Change;

平坦同态下模的内射维数

In this paper,Author had discussed Gorenstein projective dimension and injective dimension of modules on Morita equivalence rings,the results as follow:If rings R≈S,then GpdRM=GpdSF(M),GidRM=GidSF(M).

在Morita等价的环上对模的Gorenstein投射维数与内射维数进行了讨论,有如下结论:若环R≈S,则GpdRM=GpdSF(M),GidRM=GidSF(M)。

Similar to the injective resolution of M,the essential injective resolution and left essential injective dimension of M are defined,and the connections between left injecti.

在M-内射模的基础上引进了M-本质内射模的概念,研讨了M-本质内射模的一些性质,并且引入了M的本质内射分解和本质内射维数的概念,深入探讨了内射维数和本质内射维数之间的关系,得出了一些重要的结论。

That the characters on projective dimensions and injective dimensions are given for a finitely generated modules over commutative artinian rings with identity and the homological characterizations of artinian rings.

揭示了有幺交换Artin环上有限生成模的投射维数及内射维数的特征，并给出Artin环的同调刻划。

Dual Module and FP-selfinjective Dimension over Coherent Ring;

凝聚环上的对偶模与FP-自内射维数

(n,0)-Projective Dimensions and (n,0)-Injective Covers

（n,0）-投射维数与（n,0）-内射覆盖

INFLUENCE OF STRUCTURAL PARAMETERS UPON TWO-DIMENSIONAL FLOW FIELD IN THE EJECTOR

结构参数对喷射器内二维流场的影响

Study on Multi-dimensional Numerical Simulation of In-cylinder Radiation Heat Transfer of Diesel Engine

柴油机缸内辐射换热的多维数值模拟研究

Numerical Disposal of Three Dimensional Differential Coefficient Equation about Duct Flow Ejected by the Pulverized Coal & Air-Injector with Multiple Holes;

多股流粉煤—空气喷枪在圆管内射流三维微分方程的数值处理

Optical fibre: Flexible transparent fibre devices, used for either image or data transmission, in which light is propagated by total internal reflection.

光导纤维（光纤）:柔软的透明纤维组织，光线由内部的全反射而激增散播。用来传送影像或数据。

On Small Contraction Maps of Projective Varieties Odd Dimensional;

关于奇数维射影代数簇的小收缩态射的研究

Dual exponential map parameterization of maintenance Agent model

维修Agent模型的双指数映射参数化方法

Structure of the Minimal Dimensional Exceptional Locus of Small Contraction over Projective Varieties of Odd Dimension;

奇维数射影代数簇的小收缩态射的极小维例外集的结构

The energy density of the4- dimensional spacetime is supposed to be dominated by incoherent radiation and the energy-momentum tensor of the internal subspace is a step function.

我们假定四维时空的能量密度是以辐射为主的,而内禀子空间的能动张量是一个阶跃函数。

The Simulation of 3D Model for LPG Direct Injection Engine;

LPG缸内直接喷射发动机三维模型仿真

3D Numerical Simulation on the Process of the Missile Underwater Launching and Exiting from Water

潜射导弹水下发射及出水过程三维数值研究

Investigation of PAN-based carbon fiber microstructure by 2D-SAXS

二维小角X射线散射法研究PAN基炭纤维内部微孔结构

Numerical Solution of the Limited Aperture Problem in Three-Dimensional Inverse Acoustic Scattering

三维有限孔径逆声散射问题的数值解

The Numerical Solution of Scalar Field Radiation in 5D Black String Space;

5维黑弦时空中的标场辐射的数值解

Study on Nef-Value Morphisms of Higher Dimensional Projective Varieties;

关于高维代数簇的nef-值态射的研究

Process of Carbon-fibre s Digital X-ray Image;

碳纤维数字X射线的图像处理与计算

Small Finite Graded Projective Dimension gr.fp.dimR of Gr-Coherent Rings;

Gr-凝聚环的小有限分次投射维数gr.fp.dimR