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ID:33694386
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页数:31页
时间:2019-02-28
《含时滞随机gilpin-ayala系统渐近性质》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、含时滞的随机Gilpin—Ayala系统的渐近性质基础数学专业研究生蒲莲指导教师李树勇(教授)摘要本文研究了含时滞的随机Gilpin—Ayala系统的渐近性质。在第三章中,一类含时滞的随机Gilpin-Ayala系统的稳定性被讨论.通过利用Liapunov泛函法和It5积分法则,构造恰当的Liapunov泛函,得到该系统平衡态稳定的条件.第四章中.一类含时滞的随机Gilpin—Ayala系统解的一些渐近行为被分析.在给定的一些条件下,利用Liapunov泛函法和多项式函数的性质,讨论了这类含时滞的随机Gilpin—Ayala系统的全局正解的
2、存在性,以及这类方程的渐近估计、轨道估计,得出了一些关于含时滞的随机Gilpin—Ayala系统所特有的相关结论.关键词:Gilpin-Ayala系统,Liapunov泛函,随机,时滞,稳定性,渐近估计,轨道估计TheAsymptoticBehaviorGilpin—-AyalasystemoftheStochasticwithdelaysvPureM:athematicsMaster:LianPuSupervisor:ShuyongLiAbstrctInthispaper,theasymptoticbehaviorofstochastic
3、Gilpin—AyalasystemwithdelaysWasdiscussed.Inchapterthree,thestabilityofthestochasticGilpin—Ayalasystemwithdelayswasinvestigated.TheconditionstoguaranteethestabilityofanequilibriumstateweregivenbyusingtheLyapunovfunctionalmethod,It5integralruleandstructuringarightLyapunovfun
4、ction.Inchapterfour,someasymptoticbehaviorofthesolutionsofthestochasticGilpin—AyalasystemwithdelaysWasstudied.Undersomeconditions,theexistenceandasymptoticestimationandpathwiseestimationfortheglobalpositivesolutionsofthestochasticGilpin—Ayalasystemwithdelayswerediscussedby
5、usingLyapunovfunctionalmethodandthenatureofthepolynomialfunction.SomespecialrelatedconclusionswereobtainedforthestochasticGilpin—Ayalasystemwithdelays.Keywords:Gilpin-Ayalasystem,Lyapunovfunctional,Stochastic,Delay,Stability.,Momentboundedness,Pathwiseestimation目录摘要.......
6、...............................................ABSTRACT.................................................1引言....................................................2预冬知识.................................................2.1台时滞韵隧巍徵争方程的稽俘算予................................2.2概率论橱关知漩
7、-‘i.d............................................2.3指数鞍孓等式..............................................3含对浠螅随祝Gilpin—AI=lal8系统的稳定性.............................3.1含时滞的隧规毂分刀W:统i}勺稳定健..........................。.......3.2台时滞的踺规G}lpin—Atjala署,统静稳定r装.....。......................
8、4含时滞的随视Gilpln—Atjala系统的渐逅行为...........................4.1全局正磐............................
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