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finite dimensional相关的网络例句

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The inconsistencies of dimensional reduction and naive dimensional regularization in dealing withChern-Simons-matter theory are analyzed.The consistent dimensional regularization combiningwith higher covariant derivative regularization is adopted to consider Chern-Simons field theorycoupled to complex scalar and spinor field.All the local parts of one-loop two-point functionsand three-point functions are computed.Slavnov-Taylor identity is combined with these explicitcalculation results to give the one-loop local effective action.The finite gauge invariant quantumcorrection is shown and finite wave function renormalization constant for each field is defined.Thelocal part of one-loop three gauge field vertex is especially evaluated and it is verified that thereexists a renormalization choice compatible with BRST symmetry.

然后计算了所有的两点函数和三点函数单圈修正的定域部分,利用S-T恒等式给出了单圈定域有效作用量,定义了场的重正化常数,发现物质场和规范场都存在有限的规范不变的量子修正,并讨论了这些有限的规范不变的量子修正的物理意义,进而通过考察单圈三规范场顶角,表明存在与BRST对称性相容的重正化选择。5、在背景场方法的框架下,选择高阶协变导数正规化与维数正规化的杂化正规化方案计算了背景场两点函数的两圈量子修正,结果表明,标志紫外发散的极点项恰好抵消;进一步利用背景场方法中明显的规范对称性,证明背景场三点函数的两圈图贡献也是有限的。

On the other hand, Let M~n be an z-dimensional complete noncompactoriented submanifold with finite total curvature in an-dimensional simplyconnected space form F~ of constant curvature c. In this thesis, we provethat if M satisfies one of the following: n≥3, c=0 and integral from n=M H~n<∞;n≥5, c=-1 and H<1-2/n~(1/2); n≥3, c=1 and H is bounded, where Hdenotes the mean curvature of M. then the dimension of the space of L~2 harmonic1-forms on M is finite.

本文还证明:若具常曲率c的完备单连通空间型F~中具有有限全曲率的n维完备非紧可定向子流形M满足下面条件之一:n≥3,c=0且integral from n=M H~n<∞;n≥5,c=-1且H<1-2/n~(1/2;n≥3,c=1且H有界的,则M上L~2调和1-形式空间的维数是有限的,这里H为M的平均曲率。

The main contents include: Some preliminary theory (introduction to Sobolev spaces and variational formulations for differential equations); finite element methods for one-dimensional elliptic problems; the construction methods for general finite elements; error estimates for interpolation operators and inverse inequalities for finite element spaces; a priori and a posteriori error estimates for the finite element method for high-dimensional elliptic problems; some typical spectral methods for partial differential equations; error analysis for the spectral approximation for some linear and nonlinear partial differential equations.

主要内容有:准备知识(Sobolev空间的基本概念和主要结果,微分方程的变分描述);一维椭圆型方程有限元方法;一般有限元的构造;插值算子误差估计和逆不等式;高维椭圆型方程的先验、后验误差估计;求解偏微分方程的几类谱方法;线性与非线性问题谱逼近的误差分析等。

This article mainly simulates gradually damage destruction process of rock, major in determinationg the definition of rock three-dimensional damage tensor, simplify to the damage tensor and obtain its engineering calculation method, and obtains the basic expression form of equivalent stress by equivalent stress assumption, symmetrization to the actual stress, thus obtains construction relation of the festival principle of three-dimensional damage rock mass, finally couples elasticity- plasticity with damage in the finite element equation, with reference to elasticity-plasticity gradually degenerated method thought, simulates rock damage to advance gradually the destruction process in finite element method, draws up elasticity - plasticity and damage coupling two-dimension finite element procedure with the C language in the VC contact surface, by simulating experiment destroyed process, acquires destruction image and the axial load distortion curve of model, agreement with the experimental result.

本文主要模拟岩石渐进损伤破坏过程,确定岩石三维损伤张量的定义,对损伤张量进行简化计算并得出其工程计算方法,采用等效应力假设得出有效应力的基本表达形式,对有效应力进行对称化,得出节理损伤岩体的三维本构关系,在有限元方程中实现弹塑性和损伤耦合;借鉴弹塑性渐进退化方法的思想,采用有限元的方法模拟岩石损伤渐进破坏过程,用C++语言在VC界面编制了弹塑性和损伤耦合的二维有限元程序,通过模拟已有的实验破坏过程,得出模型的破坏图像和轴向荷载变形曲线,与实验结果基本一致。

Let 〓 be a finite-dimensional Z-graded Lie superalgebra.Weprove that if L has a non-degenerate trace form then s=r.Using the result,weobtain that the Killing forms of Lie superalgebras of Cartan type are degenerate.

本文得出如果有限维单Z-阶化李超代数L=〓具有非退化迹型〓,则s=r,由此可推出Cartan型李超代数的killing型是退化的。

In1994,Humphries and Stuart first studied the dissipativity of Runge-Kutta methods ap-plied to finite-dimensional systems.

动力系统的散逸性研究一直处于该领域研究的中心。

Quadratic finite volume element method s for the air pollution model in one-dimensional;2. The two-grid algorithm of the finite volume element method for second-order indefinite elliptic problems;3. A fally discrete finite volume element method is given for one-dimensional two-phase incompressible flow in porous media.

在初始网格剖分上采取分段线性函数空间作为有限体积元方法的试探函数空间,在相应的对偶网格上采取分段常数函数空间作为其检验函数空间,对一维不可压缩两相渗流驱动问题提出了全离散有限体积元方法,并得到L2-模误差估计。

It is clear that A restricted on ker T is : identity, which is compact, it must hold that ker T is finite-dimensional.

虽然ker T的有限维可以直接用反证法得出。利用ker T的有限维性质也应该是最简单的证法了吧多谢解答!

Since the founding of the symplectic algorithm by famous Chinese scientistFeng Kang and American scientist R.D.Ruth,the resulting theory of structure-preserving algorithm for finite dimensional Hamiltonian system has been wellestablished.

自从我国科学家冯康和美国科学家Ruth创立辛几何算法以来,由此建立的有限维Hamilton系统保结构算法的理论已日益完善,特别是在保辛结构算法即辛几何算法方面。

This paper reviews and summarizes the progress in this field as follows: the mathematical model and the difficulty of the analytical solutions is introduced; discusses the latest progress of the numerical solutions is discussed; the finite difference method, the Godunov method, the Boltzmann method, and the KFVS method of one-dimensional dam-break problem are introduced; the TVD method, the discontinuous finite element method, the finite volume method and characteristic method of two-dimensional dam-break problem are discussed; the applicability, the advantage and the disadvantage of each method are analyzed; and the progress in the numerical calculations of flow of fluid with free surface are presented.

回顾和总结了国内外对溃坝水流演进问题的研究进展:介绍了溃坝水流的数学模型及解析解法存在的困难,进而讨论了数值解法的最新进展;论述了求解溃坝水流一维问题的有限差分法、近似黎曼解的Godunov格式法、Boltzmann法、KFVS法和二维问题的TVD格式法、间断有限元法、有限体积法、特征线法,并分析了各种方法的适用范围和优缺点,及讨论了限制函数的使用;介绍了利用自由水面追踪方法计算溃坝水流的研究进展,并根据目前存在的不足和实际工程的需要,提出了进一步研究的方向和发展趋势。

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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。

When I was in school, the rabbi explained everythingin the Bible two different ways.

当我上学的时候,老师解释《圣经》用两种不同的方法。