共查询到20条相似文献，搜索用时 187 毫秒
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The generalized complementarity problem includes the well-known nonlinear complementarity problem and linear complementarity problem as special cases.In this paper, based on a class of smoothing functions, a smoothing Newton-type algorithm is proposed for solving the generalized complementarity problem.Under suitable assumptions, the proposed algorithm is well-defined and global convergent. 相似文献
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A new system for relaxed cocoercive non-linear variational inequalities in uniformly smooth Banach spaces is introduced and studied using the convergence of projection methods. Our results generalize and improve the corresponding results of recent works. 相似文献
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The article focuses on some points of view in disagreement with Bley-Vroman’s. In the author’s opinion, different from the L1 learning, UG is not or partially accessible to the adult foreign language learners. Some evidence is exposed to support the author’s hypothesis. The author will illustrate this from the following aspects: the concept of UG, the relation of L2 learning and problem-solving, UG accessibility, critical period, comprehensible input and interlanguage. 相似文献
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According to the process of the second language acquisition,the study of English pronunciation for Chinese students must be influenced by the native language.This paper focuses on the analysis of the pronunciation problems that Chinese students confront.The differences between English and Chinese pronunciation were analyzed in detail,and from this analysis some proper solutions for teaching such problems were proposed. 相似文献
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Delta function is an important function in mathematics and physics. In this paper, the Laplace transforms of δ(t)and δ(t-τ)have been discussed in detail. After the Laplace transform of δ(t)is analyzed, the author has found that three aspects should be taken into account, i.e. τ→0+, τ→0- andτ=0; and it is the same with the Laplace transform of δ(t-τ). Then the results of the Laplace transform of Delta function have been obtained in a rigorous and comprehensive sense. 相似文献
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We construct photon-subtracted (-added) thermo vacuum state by normalizing them. As their application we derive some new generating function formulas of Jacobi polynomials, which may be applied to study other problems in quantum mechanics. This will also stimulate the research of mathematical physics in the future. 相似文献
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应用filter技术,结合无导数方法和Armijio型条件,构造了一个新的搜索方向,给出了求解非线性互补问题的新算法,并证明了它的全局收敛性.最后的数值实验表明,此算法是可行的. 相似文献
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对NCP函数的一些性质进行研究,包括NCP函数的可微性,凸性.在此基础上,构造了三个NCP函数函数,并对其中一个函数的性质进行了简要分析. 相似文献
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先将非线性互补问题（NCP ）转化为与其等价且有可行解的辅助问题,再将引入了信赖域方法思想的SQP方法与Filter技术相结合,提出一种求解NCP问题的信赖域-SQP-filter算法,并讨论了解的存在性和算法的全局收敛性。数值结果表明我们的算法是有效并收敛的。 相似文献
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钱树华 《楚雄师范学院学报》2005,20(6):14-17
本文针对非线性方程组的求解问题提出一种混合算法，将方程组转换成一个优化问题。将优化问题的非线性共轭梯度法与混沌优化方法相结合，提出了一种新的混合优化算法。该算法能使非线性共轭梯度法跳出局部最优，最终获得全局最优。算法的收敛性也进行了证明，数值结果表明该算法是有效的。 相似文献
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钱树华 《宁夏师范学院学报》2006,27(3):38-41
本文针对非线性方程组的求解问题提出一种混合算法,将方程组转换成一个优化问题.利用优化问题的非线性共轭梯度法与混沌优化方法相结合,提出了一种新的混合优化算法.该算法能使非线性共轭梯度法跳出局部最优,最终获得全局最优.通过对算法的收敛性的证明及数值分析,结果表明该算法是有效的. 相似文献
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钱树华 《邢台职业技术学院学报》2006,23(1):70-72
本文针对非线性方程组的求解问题提出一种混合算法,将方程组转换成一个优化问题。利用优化问题的非线性共轭梯度法与混沌优化方法相结合,提出了一种新的混合优化算法。该算法能使非线性共轭梯度法跳出局部最优,最终获得全局最优。算法的收敛性也进行了证明,数值结果表明该算法是有效的。 相似文献
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李静 《温州大学学报(社会科学版)》2008,(6):1-6
研究求解全局最优化问题的算法．在分析了已有的填充函数法和打洞函数法之后,吸取了这两类算法的优点,给出了一种求取非线性最优化问题全局最优解的填充打洞函数算法．与通常的填充函数法相比,该算法降低了对其中参数的依赖,并且具有较好的求解可操作性．数值试验显示,计算效果是满意的． 相似文献
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针对非线性多峰函数的优化问题求解困难,提出一种双种群进化策略快速收敛的算法。首先,对于该类最优化问题使用双种群随机变量作为变异算子,在两个不同的子群间并行进行进化,通过使用不同的突变算子策略,实现种群在求解空间具有尽可能分散地搜索的同时在局部也具有尽可能细致的搜索能力。通过子群重组实现子群间的信息交换,通过仿真实例可看出,该算法在非线性多峰值函数优化问题中,具有求解精度较高,收敛速度较快等特点。 相似文献
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非线性互补问题(NCP)是一类应用非常广泛的问题。提出了一种积极集算法用于求解带M-函数NCP,给出了算法的收敛性定理。数值实验表明该算法具有有效性。 相似文献
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By using a smoothing function,the P nonlinear complementarity problem(P NCP)can be reformulated as a parameterized smooth equation.A Newton method is proposed to solve this equation.The iteration sequence generated by the proposed algorithm is bounded and this algorithm is proved to be globally convergent under an assumption that the P NCP has a nonempty solution set.This assumption is weaker than the ones used in most existing smoothing algorithms.In particular,the solution obtained by the proposed algorithm is shown to be a maximally complementary solution of the P NCP without any additional assumption. 相似文献
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针对麦克斯韦方程中的电导率参数反演问题,构造一种具有大范围收敛的正则化共轭斜量反演算法,即将用于求解非线性问题大范围收敛的同伦法、求解大规模优化问题的共轭斜量法与求解不适定问题的Tikhonov正则化方法有机结合,得到解决麦克斯韦方程反演问题大范围收敛的数值方法,以求解电导率参数反演问题,解决了求解过程中局部陷入极小值的困惑。实验结果表明此算法是有效的,可以应用于其他类型的参数识别问题。 相似文献