Solvability of vector Ky Fan inequalities with applications

This paper aims to study the solvability of vector Ky Fan inequalities and the compactness of its solution sets. For vector-valued functions with the cone semicontinuity and the cone quasicon- vexity in infinite dimensional spaces, the authors prove some existence results of the solutions and the compactness of the solution sets. Especially, some results for the vector Ky Fan inequalities on noncompact sets are built and the compactness of its solution sets are also discussed. As applications, some existence theorems of the solutions of vector variational inequalities are obtained.     

NON-CLASSICAL GENERALIZED SOLUTIONS FOR SOME HYPERBOLIC SYSTEMS

1.IntroductionThemostspecialfeatureofconservationlawsofhyperbolicsystemsisthattheirsolutionsalwayshavediscolltinuities.ThiskindofdiscontinuityrepresentstheshoCkwavephenomena.Sopeopleintroducetheideaofgeneralizedsolutionwhichsatisfiesequationsinthesenseofdistribution.Underthisdefinition,alotofachievementshavebeenobtainedsince1950'sinthisfield.However,inrecelltyears,manyauthors(see[l--6])discoveredthatthereisnoexistenceanduniqllenessofsolutionstoRiemannproblemsforsomeconservationlaws.Bynumeric…     

THE GENERALIZED SOLUTIONS OF PBVP FOR INTEGRO-DIFFERENTIAL EQUATIONS

ＴＨＥＧＥＮＥＲＡＬＩＺＥＤＳＯＬＵＴＩＯＮＳＯＦＰＢＶＰＦＯＲＩＮＴＥＧＲＯ－ＤＩＦＦＥＲＥＮＴＩＡＬＥＱＵＡＴＩＯＮＳＺＨＵＡＮＧＷａｎ；ＣＨＥＮＹｕｂｏ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，ＳｈａｎｄｏｎｇＮｏｒｍａｌＵｎｉｖｅｒｓ...     

POSITIVE SOLUTIONS OF SINGULAR SUBLINEAR SECOND ORDER BOUNDARY VALUE PROBLEMS

1.IntroductionBoundaryvaluepr0blemsconcerningthegeneralizedEmden-F0wlerequationsx" p(t)x'=O,(1)wherep(t)eC(O,1),p(t)20f0rtE(O,1),AER,havebeenstudiedbymanyauthors(see[1-51andthereferencestherein).InthispaperwetreattheDirichletproblem(1)withax(0)-bx'(0)=O,c…     

UPPER AND LOWER SOLUTIONS METHODS FOR EXISTENCE OF PERIODIC SOLUTIONS OF DUFFING EQUATION

1.IntroductionandNotationsInthispapertwestudytheexistenceofsolutionstothefollowingperiodicboundaryvalueproblemforthesecondorderDuffingequationwheresisarealparameter,g:[0,TIxR~RisaCarath6odoryfunctionandkER\{0}.Werecall(forexample,see[1])thatg:[0,TIxR~RiscalledaCarath6odoryfunctionifg(.,x)ismeasurableforallxERandg(t,.)iscontinuousfora.e.tE[0,TI.Theexistenceproblemfor(1.1)--(1.2)byusingtheupperandlowersolutionsmethodhasbeenstudiedbyFabryetal.in[2]foramoregeneralcasewhereacontinuousdampin…     

THREE SOLUTIONS THEOREMS FOR NONLINEAR OPERATOR EQUATIONS AND APPLICATIONS

In this paper, some three solutions theorems about a class of operators which are said to be limit-increasing are obtained. Some applications to the second order differential equations boundary value problems are given.     

ON THE EXISTENCE OF MEROMORPHIC SOLUTIONS OF ALGEBRAIC DIFFERENTIAL EQUATIONS

ＯＮＴＨＥＥＸＩＳＴＥＮＣＥＯＦＭＥＲＯＭＯＲＰＨＩＣＳＯＬＵＴＩＯＮＳＯＦＡＬＧＥＢＲＡＩＣＤＩＦＦＥＲＥＮＴＩＡＬＥＱＵＡＴＩＯＮＳ￥ＹＵＡＮＷｅｎｊｕｎ（ＤｅｐａｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，ＸｉｎｊｉａｎｇＮｏｏｒｍａｌＵｎｉｖｅｒｓ...     

GENERALIZED SUBCONVEXLIKE FUNCTIONS AND MULTIPLE OBJECTIVE OPTIMIZATION

ＧＥＮＥＲＡＬＩＺＥＤＳＵＢＣＯＮＶＥＸＬＩＫＥＦＵＮＣＴＩＯＮＳＡＮＤＭＵＬＴＩＰＬＥＯＢＪＥＣＴＩＶＥＯＰＴＩＭＩＺＡＴＩＯＮ￥ＹＡＮＧＸｉｎｍｉｎ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，ＣｈｏｎｇｑｉｎｇＮｏｒｍａｌＵｎｉｖｅｒｓｉｔ...     

The Alternative Property and Vector Optimization Problem in Ordered Locally Convex Topological Vector Spaces

ＴｈｅＡｌｔｅｒｎａｔｉｖｅＰｒｏｐｅｒｔｙａｎｄＶｅｃｔｏｒＯｐｔｉｍｉｚａｔｉｏｎＰｒｏｂｌｅｍｉｎＯｒｄｅｒｅｄＬｏｃａｌｙＣｏｎｖｅｘＴｏｐｏｌｏｇｉｃａｌＶｅｃｔｏｒＳｐａｃｅｓＷＡＮＧＱｉＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓａｎ...     

BOUNDARY SOLUTIONS OF OPERATOR EQUATIONS IN PARIAL ORDERING SETS WITH APPLICATIONS TO SYSTEMS OF FUNCTIONAL

1.IntroductionThepaPers[l-5]studythecoupledfixedp0intsofmixedmonotoneoperatorsinBanachspaces;theyshowusgeneralizationsofthefixedpoillttheoremsonincreasingoperatorsanddecreasingoperators.Applicationsoftheseresultsmaybefoundinmanyfieldsofmathematicssuchasnonlineaxdifferentialequations,illtegralequationsanddynamicprogrammingtheories.Inthispaper,westudytheekistenceofsolutionsandboundarysolutionstoasystem0foperatorequationsinpartialorderingsets.Wegeneralizeandimproveonsomeresultsaboutthecoupledfix…     

ON A CLASS OF ANISOTROPIC DIFFUSION EQUATIONS

ＯＮＡＣＬＡＳＳＯＦＡＮＩＳＯＴＲＯＰＩＣＤＩＦＦＵＳＩＯＮＥＱＵＡＴＩＯＮＳＯＮＡＣＬＡＳＳＯＦＡＮＩＳＯＴＲＯＰＩＣＤＩＦＦＵＳＩＯＮＥＱＵＡＴＩＯＮＳ￥ＧＡＯＨａｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，ＦｕｄａｎＵｎｉｖｅｒｓｉｔ...     

QUASILINEAR ELLIPTIC BOUNDARY VALUE PROBLEMS WITH DISCONTINUOUS NONLINEARITIES

1.IntroductionInthispaperweshallconsideradiscontinuousnonlinearnonmonotoneellipticboundaryvalueproblem,i.e.aquasilinearelliptichemivariationalinequalitywhereAn=--Z:=,hat(x,u,7u) ac(x,usac)an4thesymbolaldesignatesclarke'sgeneralizedgradientofalocallyL...     

EXISTENCE AND ALGORITHM OF SOLUTIONS FOR GENERALIZED STRONGLY MIXED IMPLICIT QUASI-VARIATIONAL INEQUALITIES

The purpose of this paper is to introduce and study a new class of generalized strongly mixed implicit quasi-variational inequalities in Hilbert spaces, which includes the known class of generalized mixed implicit quasi-variational inequalities as a special case. By applying the auxiliary variational principle technique, the existence of solutions for this class of quasi-variational inequalities is proved. Moreover, a new iterative algorithm for computing approximate solutions is constructed and the convergence criteria for this iterative algorithm are also established.     

Monotone Iterative Technique for Boundary Value Problem of Second Order Singular Differential System

ＭｏｎｏｔｏｎｅＩｔｅｒａｔｉｖｅＴｅｃｈｎｉｑｕｅｆｏｒＢｏｕｎｄａｒｙＶａｌｕｅＰｒｏｂｌｅｍｏｆＳｅｃｏｎｄＯｒｄｅｒＳｉｎｇｕｌａｒＤｉｆｆｅｒｅｎｔｉａｌＳｙｓｔｅｍＷＡＮＧＷｅｉ；ＬＩＵＹｏｎｇｑｉｎｇ（Ｄｅｐｔ．ｏｆＡｕｔｏｍａｔｉｏｎ...     

An Exact Solution and its Extensions for Generalized Linear Least Squares Problems

ＡｎＥｘａｃｔＳｏｌｕｔｉｏｎａｎｄｉｔｓＥｘｔｅｎｓｉｏｎｓｆｏｒＧｅｎｅｒａｌｉｚｅｄＬｉｎｅａｒＬｅａｓｔＳｑｕａｒｅｓＰｒｏｂｌｅｍｓＬＩＵＸｉａｏｍｉｎＤｅｐｔｏｆＡｐｐｌｉｅｄＭａｔｈ．，ＢｅｉｊｉｎｇＵｎｉｖｅｒｓｉｔｙｏｆＡｅｒｏｎａ...     

具有多值映射的两级优化问题的广义算法研究

两级优化问题是一种非凸非光滑问题，绝大多数问题的求解都是建立在下层有唯一解的基础之上的。而本文针对多值映射，即下层非唯一解的情形，利用隐函数理论，将两级优化问题转化为带有隐函数的非光滑问题，提出求解这类问题的广义算法框架，并证明其收敛性，最后通过实例验证该方法的实用性．     

THREE-POINT BOUNDARY VALUE PROBLEMSFOR A CLASS OF THREE ORDER DIFFERENTIAL INCLUSIONS

1.IntroductionandLemmasThree-pointboundaryvalueproblems(BVPforshort)forthreeorderdifferentialequationsareveryusefulincertainpracticalworkandattractcloseattentionextensively,see[l--41.Recently,in[11,GuptaandLakshmikanthamstudiedthefollowingthree-pointBVP:U"'(x)=f(x,ulU',U")--e(x),(l)u(0)=u(n)=u(1)~0,(2)wheref:[0,1]xR3-RdoesnothavetobecontinuousandnE(0,1).ThemainresultisthefollowingTheoremLetfsatisfyCarntheodory'sc.nditions[1]andthefollowingconditions:i)3a,b,cER,or(x)ELI[0,1],suchthatfo…     

EXISTENCE AND UNIQUENESS AND STABILITY OF SOLUTIONS FOR STOCHASTIC IMPULSIVE SYSTEMS

This paper studies the existence, uniqueness, and stability of solutions for stochastic impulsive systems. By employing Lyapunov-like functions, some sufficient conditions of the global existence, uniqueness, and stability of solutions for stochastic impulsive systems are established. Furthermore, the results are specialized to the case of linear stochastic impulsive systems. Finally, some examples are given to illustrate the applications of our theory.     

再论C2R模型的最优解的存在性及灵敏度分析

在评价指标可取负值及较宽松的条件下论证了有关C^2R模型(D)及扩展的C^2R模型(D0)的最优解存在性定理．然后，在输出可取负值的情况下，给出了用(D0)来判断DEA有效的定理，并据此讨论了评价指标有相对误差时的灵敏度分析．     

基于目标希望水平的多目标决策新方法

本文提出一种基于目标希望水平的多目标决策新方法，该方法按照实际决策思维方式构造产生非劣解的辅助问题，充分考虑决策人在决策过程中的交互要求，通过决策人对目标希望水平的确定或修正获取有用的偏好信息，简单、实用，易于在计算机上实现。文中给出的若干定理保证了决策方法的有效性。