简介：Basedonthenotionofmaximalabsoluteobservabilityanditsnormalforms,anewmethodforstudyingthelocalstabilizationforakindofnonlinearcontrolsystemsisestablished.DifferentfromthepreviousresultsgivenbyByrnes-Isitoriandothers,thisnewmethodcandealwithmoregeneralsystems,andhasmuchsimplerwaytoprovethestabilizationconditionsandtodesignthefeedbacklaws.

简介：ＯＮＴＥＳＴＳＦＯＲＬＯＣＡＬＥＸＴＲＥＭＵＭＰＯＩＮＴＳＩＮＰＲＯＪＥＣＴＩＯＮＰＵＲＳＵＩＴＺＨＡＮＧＪｉａｎ；ＬＩＧｕｏｙｉｎｇ（ＩｎｓｔｉｔｕｔｅｏｆＳｙｓｔｅｍｓＳｃｉｅｎｃｅ，ＡｃａｄｅｍｉａＳｉｎｉｃａ，Ｂｅｉｊｉｎｇ１０００８０，Ｃｈ...

简介：Asystemofthree-unitnetworkswithcoupledcellsisinvestigated.ThegeneralformulaforbifurcationdirectionofHopfbifurcationiscalculatedandtheestimateformulaofperiodoftheperiodicsolutionisgiven.

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简介：Thispaperstudiesafamilyofthelocalconvergenceoftheimprovedsecantmethodsforsolvingthenonlinearequalityconstrainedoptimizationsubjecttoboundsonvariables.TheHessianoftheLagrangianisapproximatedusingtheDFPortheBFGSsecantupdates.Theimprovedsecantmethodsareusedtogenerateasearchdirection.Combiningwithasuitablestepsize,eachiterateswitchestotrialstepofstrictinteriorfeasibility.WhentheHessianisonlypositivedefiniteinanaffinenullsubspace,oneshowsthatthealgorithmsgeneratethesequencesconvergingq-linearlyandtwo-stepq-superlinearly.Furthermore,undersomesuitableassumptions,somesequencesgeneratedbythealgorithmsconvergelocallyone-stepq-superlinearly.Finally,somenumericalresultsarepresentedtoillustratetheeffectivenessoftheproposedalgorithms.

简介：这份报纸学习传统的本地轻快模型并且求婚：有吝啬回复的过程的一个新奇本地轻快模型。在本地轻快和它的吝啬的水平之间的差距越大，越多higher将是本地轻快将在回复到平均数的率。然后，有合适的结控制的一个B花键方法被使用插入内推本地轻快矩阵。双性人立方的B花键被用来从这个本地轻快矩阵恢复本地轻快表面。最后，实验测试证明建议吝啬回复的本地轻快模型比传统的本地轻快模型提供更好的预言性能。

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