微分空间
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作为其应用,建立起Tg中的Teichmüller度量与(M,σdz2)上的全纯二次微分空间QD(σ)中的范数之间的联系。
As an application of this , the relationship between the Teichm ü ller metric in T_g and the norm in the space QD (σ) of holomorphic quadratic differentials on ( M ,σ dz ~ 2 ) is obtained .
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类带弱奇异核的偏积分微分方程空间半离散的稳定性
Stability of Spatial Half Discretization for a Partial Integro-Differential Equation With a Weakly Singular Kernel
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离散系统中的微分度量空间
Differential metric spaces of discrete systems
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本文考虑一类带弱奇异核抛物型偏积分微分方程空间,时间全离散,采用谱配置方法,得出其相应的稳定性和误差估计。
But a few of them make the global behavior of full discretization by spectral methods . We study a partial integro-defferential equations of parabolic type with a weakly singular kernel , using spectral collocation derived stabilities and error estimated respectively .
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黎曼流形上的弱协变微分与Sobolev空间
Weak covariant differentiation and Sobolev space on Riemannian manifolds
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本文在查阅大量与蜗杆和CNC齿轮测量中心有关的国内外科技文献的基础上,利用微分几何和空间立体几何的相关知识建立了多种常用圆柱蜗杆的理论模型。
In this paper , referring to great lot of scientific and technical literatures about worm and CNC , establish mathematical model of cylindrical worm on the basis of the differential geometry and three-dimensional geometry of space-related knowledge .
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伪谱时域方法(PSTD)因采用快速傅立叶变换算法求解空间微分,其空间网格采样率与总体尺寸无关,极大地减少了空间采样率。
Because a fast Fourier transform algorithm is used to represent the spatial derivatives in pseudospectral time-domain method ( PSTD ), the spatial sampling rate of PSTD method is independent of the overall electrical size of the structure being modeled , which greatly reduces the spatial sampling rate .
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质子剂量微分谱预估空间辐射剂量
Dose assessment for space radiation using a proton differential dose spectrum
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关于泛函微分方程状态空间的选择
On the choice of state space of fde 's
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本文给出了微分型液晶空间光调制器的理论依据及初步实验结果。
Initial experimental results and theory are presented .
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本文介绍了基于横向电场电光效应的微分型液晶空间光调制器。
A Liquid-crystal differentiating spatial light modulator based on a transverse electro-optic effect is presented .
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微分型液晶空间光调制器
Liquid-crystal Differentiating Spatial Light Modulator
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为了反演右端载荷项,需要对这样的微分系统在空间上进行离散。
For identifying the load distributions in right hand , it is necessary to discretize such differential systems in space .
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信息提取主要采用的是光谱微分法和空间形态滤波的方法,信息标定部分采用的是感兴趣区域最小外接矩形法。
The main extraction methods are spectral derivative and spatial morphological filtering . Marking method is minimum enclosing rectangle ( MER ) .
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基于微分几何和空间啮合理论,分析了修正型圆环面双包络环面蜗杆副齿面形成原理。
Analysis of the forming principle of tooth flank of modified type worm gear pair was based on different geometry and spatial engaging theory .
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用中心差分法将偏微分方程在空间内离散,导出了系统的面内振动常微分方程组;
The equations are discretized in space by finite center difference approximation , then the nonlinear differential equations are obtained for the in-plane vibration of the cables-dampers system .
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同时介绍了变分问题中空间对照结构研究的最新进展,并对偏微分方程中空间对照结构的发展进行了概述。
In the meanwhile , it introduces the latest research progress of contrast spatial structure of variation problems . The outline of contrast spatial structure solutions in PDE is also included .
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根据微分几何及空间啮合的基本理论,对单螺杆压缩机圆台二次包络啮合副的型面方程及工作腔面积的计算作了系统的分析。
According to the basic theory of differential geometry and space engagement principle , the equation and the area calculation of working surface with a conical surface two-envelope engagement pair are analyzed in detail .
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以微分几何与空间啮合理论为基础,推导了锥面二次包络圆柱蜗杆传动两次包络过程中的啮合方程和主要啮合性能指标方程,以图直观的表示出其形状、位置和分布状况。
Based on differential geometry and spatial engaging theory , a set of formula of conical surface double enveloping worm gearing had been derived and its figures , position and distribution had been depicted by graphs .
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一方面,建立了摩托车5自由度线性理论分析模型,运用拉格朗日方法推导了系统运动微分方程和空间状态方程,为摩托车振动分析提供了重要的理论基础。
On the one hand , the 5-DOF multi-body dynamic model was built . Also , the differential equation of motion and state-space formulation were derived according to Lagrange Equation , which provided an important theoretical fundament for vibration analysis of motorcycle .
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拟微分算子在Sobolev空间中可解性的充要条件
A necessary and sufficient condition for solvability of pseudodifferential operators in Sobolev space
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利用第二类Lagrange方程推导了一级倒立摆非保守有阻尼系统的运动微分方程和状态空间模型。
The differential equations of motion and the state space model of the single inverted pendulum nonconservative damping system are deduced by using the second kind Lagrange equation .
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关于紧光滑流形上半鞅随机微分方程在欧氏空间的嵌入
On Imbedding of Semimartingale Stochastic Differential Equations on Compact Smooth Manifolds into Euclidean Spaces
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利用公理化定义方法建立半直线上脉冲微分包含的相空间。
At first , their phase space are established by using axiomatic definition method .
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引入求解线性微分方程的状态空间法,并对其求解时变系统运动微分方程的具体步骤进行了推导;
The closed form algorithm of the state space method is employed to solve the system dynamic equation with time-varying coefficients .
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本文研究一类三阶微分方程组的空间周期解与浑沌性质。
It is the main purpose of this paper to study spatial periodic solutions and chaotic behavior in many parameter families of third-order differential equations .
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在A&Φ位和库仑规范的前提下,导出了涡流区域微分方程和自由空间积分方程在涡流区边界上的耦合条件。
Combined boundary conditions between A ─Φ differential equation and integral equation are derived by applied Coulomb 's gauge to eddy current region and free space .
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本文也研究了和算子,直和算子,张量积算子以及在某种意义下可看成加权移位的微分算子在一定空间上的非游荡性。
This paper have also explored the nonwandering property of sum of operator , direct sum of operator , tensor products of operators and differentiation operators which can be viewed as weighted shifts on some space .