查询词典 bound norm

Fast algorithm of minimal norm least square solution for Cauchy linear system;2. For the m×n Cauchy-type matrix with full column rank,the fast algorithm of the minimal norm least square solution to the linear system Cx=b was obtained by construction of a special block matrix and study of the triangular decomposition.

对于秩为n的m×n阶Cauchy型矩阵C，通过构造特殊分块矩阵并研究其三角分解，进而得到了线性方程组C x=b的极小范数最小二乘解的快速算法，所需运算量为O+O(n2)，而通常构造法方程组的方法所需运算量为O(m n2)+O(n3)，用正交化法虽然避免了构造法方程组，但所需的运算量更大些。

The title of this article is the estimate of the essential norm of a compositionoperator between Bloch-type spaces in the unit ball of C^n. That is to say, making useof the tool of the essential norm ,we get the upper estimate and the lower estimate ofthe composition operator which we have studied .In addition, we get a sufficient andnecessary condition for the composition operator to be compact.

本文主要讨论了单位球上Bloch型空间之间复合算子的本性模估计，即用本性模这个工具来研究复合算子并给出了我们所研究算子的本性模的上界和下界估计，并由此可以得到相应算子紧的充要条件。

It takesthe weighted average of the L2 norm of the difference of the observation and thesolution of the system and the L2 norm of the difference of conormal derivativeat the different sides of the interface for every subdomain as cost functional andthe smooth coefficients of the subproblem and the value of solution of the originalproblem at interface as identification parameters;Using the property of continu-ous functional defined on compact set,the existence of the optimal solution of theidentification problem is proved;The necessary conditions of optimality charac-terized by the system equation,the adjoit equation and the variational inequalitysimultaneously are given by introducing the conception ofdifferential andadjoit variable;An algorithm is devised and its flow graph is given.

其次，针对分片光滑动力系统的特征，结合正演过程的区域分解算法，建立了分片光滑系统的分解区域参数辨识模型，该模型以子区域上解的实测值与计算值之差的L2范数和界面两侧的通量差的L2范数的加权平均作目标泛函，各子问题的光滑系数及界面上真解的值为待辨识参量；利用紧致集上连续泛函的性质，证明了子区域上参数辨识问题最优辨识参量的存在性；引入微分的概念，借助伴随变量，给出了由系统方程，伴随方程和变分不等式共同表征的最优性必要条件；根据此必要条件设计了算法，给出了算法的程序框图。

The optimal convergence rates in H-1 and L-2 norms are proved, and the convergence order in L-2 norm is one order higher than that in H-1 norm.

并分别给出了解的H-1模和L-2模的最优收敛阶估计， L-2模收敛阶比H-1模收敛阶高一阶。

With an energy method,the optimal order convergence rate in discrete H1 norm is proved and the stability in H1 norm is proved without any restrictive conditions about steps Δt and h.

利用变分形式及能量方法，得到离散H1范数的最优阶先验误差估计及稳定性。

Based on the flaw of the probability reliability model in the case of small amount of information,non-probability and mixed probability/non-probability reliability models are presented. When the uncertainty of the basic random variable is described by convex, analytical and numerical methods are constructed to calculate the convex of response variable. The infinite norm index, which is the minimal infinite norm distance from original coordinate point to the surface of the limit state in the standard interval space, is presented to measure the safety of the structure.

针对概率可靠性模型在小子样信息下的缺陷，建立了非概率可靠性模型及概率—非概率混合可靠性模型；给出了用集合来描述变量不确定性时，极限状态变量变化集合的解析解和数值迭代解法；提出了物理概念明确且十分易于工程应用的度量结构、机构安全程度的无穷范数指标，它是标准区间空间中坐标原点到极限状态表面的最小无穷范数距离。

But we should also see that the social intermediary organization under the adverse effects of values such as"the money is supreme", and"the power worship", is facing the ethical dilemma, presents the phenomenon of ethical anomie which are the lack of the role moral excellence, the jobholders'morals to deviate from the norm, the moral evaluation criteria to deviate from the norm, the moral control mechanism deficiently and so on.

但同时也应看到，社会中介组织在"权力崇拜"、"金钱至上"等价值观念的不良影响下，也面临着掩饰不住的伦理困境，出现了角色美德缺失、从业人员的道德失范、道德评价标准失范、道德控制机制匮乏等伦理失范现象。

Nor does a single legal norm lose its validity if it is only exceptionally not effective in single cases. On the other hand, a legal norm may lose its validity by never obeyed, applied or executed – by so-called desuetude or permanently unexecuted.

当整个法律秩序失去实效时，这个法律秩序和每个单个的法律规范也就失去了效力；当一个单个的法律规范失去实效的时候，整个法律秩序并不失去效力；如果单个的法律规范只是作为例外在个别情况下失去实效，那么这个规范并不失去效力；如果单个的法律规范永久失去实效，即它从未被遵守、适用或者执行，它会因废弃或永久不被执行而失去效力。

Results The scores of SCL-90 factors were lower than that of the norm of college students while some factor scores were higher than the national norm of youth. The top three positive factors were obsessive-compulsive (25.2%), depression (18.9%), interpersonal sensitivity (18.4%). The results of Logistic regression analysis showed that bad relations with roommates, bad relation with spouse or lover, failure in completing the study plans, emotional volatility, suffering from disesteem or discrimination and lack of career planning were risk factors.

结果 该群体SCL-90各因子分值均低于大学生常模，部分因子分值高于全国青年常模；因子呈阳性比例较大的依次为强迫25.2%，抑郁18.9%，人际关系敏感18.4%；多因素Logistic回归分析显示，与寝室同学关系不好OR=1.561，95% CI=1.190~2.047；与恋人或配偶关系不好OR=1.342，95% CI=1.044~1.725；读书计划完不成OR=1.282，95% CI=1.066~1.542；情绪波动大OR=1.614，95% CI=1.303~1.999；受到歧视或冷遇OR=1.430，95% CI=1.151~1.778；不知道职业生涯规划OR=1.606，95% CI=1.354~1.917，提示些因素是影响硕士研究生心理健康的危险因素。

Results The scores of SCL90 factors were lower than that of the norm of college students while some factor scores were higher than the national norm of youth.The top three positive factors were obsessivecompulsive(25.2%),depression(18.9%),interpersonal sensitivity(18.4%).The results of Logistic regression analysis showed that bad relations with roommates,bad relation with spouse or lover,failure in completing the study plans,emotional volatility,suffering from disesteem or discrimination and lack of career planning were risk factors.

结果 该群体SCL-90各因子分值均低于大学生常模，部分因子分值高于全国青年常模；因子呈阳性比例较大的依次为强迫25.2%，抑郁18.9%，人际关系敏感18.4%；多因素Logistic回归分析显示，与寝室同学关系不好OR=1.561，95%CI=1.190～2.047；与恋人或配偶关系不好OR=1.342，95%CI=1.044～1.725；读书计划完不成OR=1.282，95%CI=1.066～1.542；情绪波动大OR=1.614，95%CI=1.303～1.999；受到歧视或冷遇OR=1.430，95%CI=1.151～1.778；不知道职业生涯规划OR=1.606，95%CI=1.354～1.917，提示些因素是影响硕士研究生心理健康的危险因素。

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

14：33 盐本是好的，盐若失了味，可用什么叫它再咸呢？

He reiterated that the PLA is an army of the people under the leadership of the Communist Party of China.

他重申，人民解放军是在中国共产党领导下的人民军队。