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A GLOBAL LINEAR AND LOCAL QUADRATIC SINGLE-STEP NONINTERIOR CONTINUATION METHOD FOR MONOTONE SEMIDEFINITE COMPLEMENTARITY PROBLEMS 被引量:1
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作者 张立平 《Acta Mathematica Scientia》 SCIE CSCD 2007年第2期243-253,共11页
A noninterior continuation method is proposed for semidefinite complementarity problem (SDCP). This method improves the noninterior continuation methods recently developed for SDCP by Chen and Tseng. The main proper... A noninterior continuation method is proposed for semidefinite complementarity problem (SDCP). This method improves the noninterior continuation methods recently developed for SDCP by Chen and Tseng. The main properties of our method are: (i) it is well d.efined for the monotones SDCP; (ii) it has to solve just one linear system of equations at each step; (iii) it is shown to be both globally linearly convergent and locally quadratically convergent under suitable assumptions. 展开更多
关键词 Semidefinite complementarity problem noninterior continuation method global convergence local quadratic convergence
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EXISTENCE AND NONEXISTENCE OF GLOBAL CONTINUOUS SOLUTIONS TO RIEMANN PROBLEM FOR DAMPED P-SYSTEM
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作者 林龙威 杨彤 《Acta Mathematica Scientia》 SCIE CSCD 1993年第1期1-12,共12页
In this paper, we extend the result in [16] to general p(v). We prove that, under condition (M), when P greater-than-or-equal-to 3/2, where P=pp triple overdot/p2, there exists a unique global continuous solution to t... In this paper, we extend the result in [16] to general p(v). We prove that, under condition (M), when P greater-than-or-equal-to 3/2, where P=pp triple overdot/p2, there exists a unique global continuous solution to the Riemann problem (E), (R), whose structure is similar to the local solution. When 1 < P* less-than-or-equal-to P* < 5/4, or P* = P* = 5/4, or 5 < P* less-than-or-equal-to P* < 3/2 where P*-inf/v P and P* = sup/v P for all v under consideration, if at least one of the initial centered rarefaction waves is sufficiently strong, then the solution must be breakdown in a finite time. 展开更多
关键词 EXISTENCE AND NONEXISTENCE OF global CONTINUOUS SOLUTIONS TO RIEMANN PROBLEM FOR DAMPED P-SYSTEM
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FOTON Continues to hold its Championship as Global Largest Commercial Vehicle Manufacturer
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《ChinAfrica》 2011年第7期53-53,共1页
Latest data from the China Association of Automobile Manufacturers(CAAM) shows that through 2010.China’s automobile sales surpassed 18 million, breaking the world record of annual auto sales previously held by the Un... Latest data from the China Association of Automobile Manufacturers(CAAM) shows that through 2010.China’s automobile sales surpassed 18 million, breaking the world record of annual auto sales previously held by the United States.Now that China has become a major global auto production player, how is Foton faring? CAAM statistics said production and sales volume of 展开更多
关键词 FOTON Continues to hold its Championship as global Largest Commercial Vehicle Manufacturer In
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Influence of Node Dynamics on Cluster Global Time Continuity
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作者 李立 刘勇攀 +1 位作者 杨华中 汪蕙 《Tsinghua Science and Technology》 SCIE EI CAS 2011年第2期207-215,共9页
The cluster global time can change in wireless sensor networks due to leader re-elections and node disabilities between two successive synchronizations, which will affect temporal relationships. This paper analyzes cl... The cluster global time can change in wireless sensor networks due to leader re-elections and node disabilities between two successive synchronizations, which will affect temporal relationships. This paper analyzes cluster global time continuity, using global time change models for the node dynamics. The results prove that defining the global time using the cluster average time (AGT) is more stable than defining it using a single node's local time (SGT). With normally distributed clock-parameter assumptions, the AGT change bounds are at most 70.7% of those for the SGT's. The impacts of the initial phase and frequency skew distributions on the global time continuity are also investigated to show that the initial phase variations may strongly influence the continuity. Simulations show that the AGT is more stable with less disabled nodes or larger clusters. The appropriate cluster size is 20-40 when there are less than 15 disabled nodes. 展开更多
关键词 continuous global time AVERAGE wireless sensor networks
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A Modified Integral Global Optimization Method and Its Asymptotic Convergence 被引量:2
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作者 Zheng Peng Ya-jun Shen Dong-hua Wu 《Acta Mathematicae Applicatae Sinica》 SCIE CSCD 2009年第2期283-290,共8页
In this paper, we propose a new integral global optimization algorithm for finding the solution of continuous minimization problem, and prove the asymptotic convergence of this algorithm. In our modified method we use... In this paper, we propose a new integral global optimization algorithm for finding the solution of continuous minimization problem, and prove the asymptotic convergence of this algorithm. In our modified method we use variable measure integral, importance sampling and main idea of the cross-entropy method to ensure its convergence and efficiency. Numerical results show that the new method is very efficient in some challenging continuous global optimization problems. 展开更多
关键词 Continuous global optimization modified integral global optimization method asymptotic convergence
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World Economic Outlook Global economy will continue the moderated upward trajectory of 2005 in the new year 被引量:1
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作者 BI JIYAO is deputy director of the Institute for International Economic Research, National Reform and Development Commission 《Beijing Review》 2006年第4期14-17,共4页
In 2005, world economic growth decelerated modestly in contrast to the robust performance of the previous year, due to repeated spikes in oil prices and a battery of interest rate hikes by the U.S. Federal Reserve.
关键词 World Economic Outlook global economy will continue the moderated upward trajectory of 2005 in the new year OUTLOOK
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