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ON THE EXISTENCE OF POSITIVE SOLUTIONS TO SECOND ORDER PERIODIC BVPS 被引量:28
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作者 蒋达清 《Acta Mathematica Scientia》 SCIE CSCD 1998年第S1期31-35,共5页
The existence of positive solutions to second-order periodic BVPs-u'+Mu =j(t, u),t(0) = u(2π),u'(0) = '(2π) and u'+ Mu = I(t, u), u(0) = u(2π), u'(0) = u'(2π)is proved by a simple appliCati... The existence of positive solutions to second-order periodic BVPs-u'+Mu =j(t, u),t(0) = u(2π),u'(0) = '(2π) and u'+ Mu = I(t, u), u(0) = u(2π), u'(0) = u'(2π)is proved by a simple appliCation of a Fixed point Theorem in cones due to Krasnoselskii. 展开更多
关键词 Periodic BVP. positive solutions. the fixed point theorem
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Extended tanh-function Method for Solving Traveling Wave Solutions of Nonlinear Kundu Equation 被引量:1
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作者 Cai Hua Guo Ning +2 位作者 Chang Jing Liu Li-huan Wu Xian-na 《Communications in Mathematical Research》 CSCD 2016年第3期281-288,共8页
In this paper, we study the existence of multiple positive periodic solutions for the second order differential equation x′′(t) + p(t)x′(t) + q(t)x(t) = f(t, x(t)).By using Krasnoselskii fixed point... In this paper, we study the existence of multiple positive periodic solutions for the second order differential equation x′′(t) + p(t)x′(t) + q(t)x(t) = f(t, x(t)).By using Krasnoselskii fixed point theorem, we establish some criteria for the existence and multiple positive periodic solutions for this differential equation. 展开更多
关键词 positive periodic solution multiplicity differential equation Krasnoselskii fixed point theorem
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POSITIVE SOLUTIONS FOR SOME 1-DIMENSIONAL BOUNDARY VALUE PROBLEMS OF LAPLACE-TYPE 被引量:1
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作者 Bai Zhanbing Liang Xiangqian Li Weiming 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2007年第1期13-20,共8页
This paper deals with the existence of triple positive solutions for the 1-dimensional equation of Laplace-type (φ(x′(t)))′+q(t)f(t,x(t),x′(t))=0,t∈(0,1),subject to the following boundary condit... This paper deals with the existence of triple positive solutions for the 1-dimensional equation of Laplace-type (φ(x′(t)))′+q(t)f(t,x(t),x′(t))=0,t∈(0,1),subject to the following boundary condition:a1φ(x(0))-a2φ(x'(0))=0,a3φ(x(1))+a4φ(x'(1))=0,where φ is an odd increasing homogeneous homeomorphism. By using a new fixed point theorem, sufficient conditions are obtained that guarantee the existence of at least three positive solu- tions. The emphasis here is that the nonlinear term f is involved with the first order derivative explicitly. 展开更多
关键词 triple positive solution equation of Laplace-type boundary value problem fixed point theorem.
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A THREE-DIMENSIONAL SOLUTION OF THE PROBLEM OF THREE FIXED CENTRES
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作者 覃一平 聂昭明 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 1996年第6期555-558,共4页
Based on the definitions of three fixed centres in a four-dimensional space, a three-dimensional solution of the problem of three fixed centres is presented,whichdevelops the plane solution of the problem.
关键词 celestial mechanics fixed centres threc-dimensional solution
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ZTE's Fixed Access Network Solution
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作者 Wang Fengyan, Chang Mingbo (ZTE Shanghai R&D centre, Shanghai 210003, China) 《ZTE Communications》 2005年第4期61-64,共4页
This article introduces the Fiber-to-the-World total solution, a fixed access network solution launched by ZTE Corporation. The ZXA10-MSAN system, an important part of the solution, is presented. The ZXMSG 5200/5600 a... This article introduces the Fiber-to-the-World total solution, a fixed access network solution launched by ZTE Corporation. The ZXA10-MSAN system, an important part of the solution, is presented. The ZXMSG 5200/5600 access gateway system, the updated version of ZXA10-MSAN, is also described. Moreover, ZXPON, the passive optical network system, is mentioned. The wide application of the solution is demonstrated by three application cases in the end. 展开更多
关键词 ACCESS MSAN NGN ZTE’s Fixed Access Network solution
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Solutions to Convergence of Mobile and Fixed NGNs
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作者 Chen Yumei (Mobile Division of ZTE Corporation,Shanghai 201203,China) 《ZTE Communications》 2003年第2期28-31,共4页
NGN is the current hot topic of the fixed network development,while 3G is the trend of the mobile communication in the next few years. Since the emerging all-service operators will soon have new de- mands on communica... NGN is the current hot topic of the fixed network development,while 3G is the trend of the mobile communication in the next few years. Since the emerging all-service operators will soon have new de- mands on communication network technologies,it is foreseeable that mobile and fixed NGNs converge.The article mainly analyzes the solutions to the convergence of mobile and fixed NGNs,and points out that convergence is a long-term goal. 展开更多
关键词 of from net for that de it NGN solutions to Convergence of Mobile and Fixed NGNs OSA PSTN WCDMA MGW
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On Skew Triangular Matrix Rings 被引量:3
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作者 Wang Wei-liang Wang Yao Ren Yan-li 《Communications in Mathematical Research》 CSCD 2016年第3期259-271,共13页
In this paper, we prove the existence and uniqueness of positive solutions for a system of multi-order fractional differential equations. The system is used to represent constitutive relation for viscoelastic model of... In this paper, we prove the existence and uniqueness of positive solutions for a system of multi-order fractional differential equations. The system is used to represent constitutive relation for viscoelastic model of fractional differential equations. Our results are based on the fixed point theorems of increasing operator and the cone theory, some illustrative examples are also presented. 展开更多
关键词 fractional differential equation Caputo fractional derivative fixed point theorem positive solution
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Controllability of Nonlinear Neutral Evolution Equations with Nonlocal Conditions 被引量:1
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作者 刘明姬 吕悦 吕显瑞 《Northeastern Mathematical Journal》 CSCD 2007年第2期115-122,共8页
In this paper, we establish sufficient conditions for the controllability of nonlinear neutral evolution equations with nonlocal conditions. The result is obtained by using Krasnoselski-Schaefer type fixed point theorem.
关键词 nonlocal condition nonlinear neutral evolution equation mild solution Krasnoselski-Schaefer fixed point
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Existence of Positive Solutions for Systems of Nonlinear Second-Order Differential Equations on the Half Line in a Banach Space 被引量:1
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作者 Xing Qiu ZHANG 1,2 1.School of Mathematics and Statistics,Huazhong University of Science and Technology,Hubei 430074,P.R.China 2.School of Mathematics,Liaocheng University,Shandong 252059,P.R.China 《Journal of Mathematical Research and Exposition》 CSCD 2011年第4期587-604,共18页
In this paper, the cone theory and MSnch fixed point theorem combined with the monotone iterative technique are used to investigate the positive solutions for a class of systems of nonlinear singular differential equa... In this paper, the cone theory and MSnch fixed point theorem combined with the monotone iterative technique are used to investigate the positive solutions for a class of systems of nonlinear singular differential equations with multi-point boundary value conditions on the half line in a Banach space. The conditions for the existence of positive solutions are formulated. In addition, an explicit iterative approximation of the solution is also derived. 展开更多
关键词 systems of singular differential equations cone and ordering positive solutions Monch fixed point theorem measure of non-compactness.
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FIXED POINTS AND EXPONENTIAL STABILITY OF ALMOST PERIODIC MILD SOLUTIONS TO STOCHASTIC VOLTERRA-LEVIN EQUATIONS
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作者 Tong Ouyang Weiguo Liu 《Annals of Differential Equations》 2015年第2期190-199,共10页
In this paper, we consider stochastic Volterra-Levin equations. Based on semigroup of operators and fixed point method, under some suitable assumptions to ensure the existence and stability of pth-mean almost periodic... In this paper, we consider stochastic Volterra-Levin equations. Based on semigroup of operators and fixed point method, under some suitable assumptions to ensure the existence and stability of pth-mean almost periodic mild solutions to the system. 展开更多
关键词 stochastic differential equation fixed points theory almost periodic solutions
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