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Xing Mei XUE 《数学学报(英文版)》2007,23(6):983-988
In this paper we give the existence of mild solutions for semilinear Cauchy problems u′(t) = Au(t) +f(t, u(t)), t ∈ I, a.e. with nonlocal initial condition u(O) = g(u) +uo when the map g loses compactness in Banach spaces. 相似文献
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Existence and Approximate Controllability of Solutions for an Impulsive Evolution Equation with Nonlocal Conditions in Banach Space 下载免费PDF全文
Lixin Sheng Weimin Hu You-Hui Su Yongzhen Yun 《Journal of Nonlinear Modeling and Analysis》2024,6(1):194-209
In this article, we study the existence of mild solutions and approximate controllability for non-autonomous impulsive evolution equations with nonlocal conditions in Banach space. The existence of mild solutions and some conditions for approximate controllability of these non-autonomous impulsive evolution equations are given by using the Krasnoselskii''s fixed point theorem, the theory of evolution family and the resolvent operator. In particular,the impulsive functions are supposed to be continuous and the nonlocal item is divided into Lipschitz continuous and completely bounded. An example is given as an application of the results. 相似文献
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曲绍平 《数学的实践与认识》2007,37(16):157-163
研究了一类带有非局部条件积分微分包含的可控性,利用Kakutani不动点定理和Schauder不动点定理,我们给出了凸和非凸两种情形可控性的充分条件. 相似文献
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本文利用不动定理研究Banach空间中一类非线性积分微分方程解的存在性,推广了一些已知结果。 相似文献
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In this paper, we establish sufficient conditions for existence and controllability of nonlinear neutral evolution integroditferential systems in Banach spaces. The result is obtained by using the resolvent operators and fixed point analysis approach. 相似文献
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在W1,p(x)空间框架下研究了具有p(x)增长条件的椭圆型偏微分方程:-d iva(x,u,D u) g(x,u,u)=f,得到了在W10,p(x)空间中弱解的存在性,推广了Boccardo等关于在Sobo lev空间中弱解的相应结论. 相似文献
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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. 相似文献
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Xuping Zhang Pengyu Chen Yongxiang Li 《Numerical Functional Analysis & Optimization》2013,34(14):1678-1702
AbstractThe aim of this paper is to discuss the existence of mild solutions and positive mild solutions for a general class of semilinear fractional retarded evolution equations subjected to mixed nonlocal plus local initial conditions on infinite dimensional Banach spaces. Under the situation that the nonlinear term and nonlocal function satisfy some appropriate growth conditions and a noncompactness measure condition, we obtained the existence of mild solutions and positive mild solutions by utilizing a generalized Darbo’s fixed point theorem and a new estimation technique of the measure of noncompactness. In addition, the strong restriction on the constants in the condition of noncompactness measure is completely deleted in this paper. An example about the retarded parabolic partial differential equation involving a general mixed nonlocal plus local initial conditions is also given to illustrate the feasibility of our abstract results. 相似文献
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非局部条件下半线性微分方程的适度解 总被引:1,自引:0,他引:1
讨论了Banach空间中非局部条件下半线性微分方程的适度解的存在性,利用不动点和非紧测度的方法,给出了在不需要半群紧性条件下方程适度解的存在性,并且对f是连续紧算子和f是Lipschitz连续的情形做了统一处理,从而得到了更为广泛和一般性的结果. 相似文献
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Banach空间一类非线性积分微分方程解的存在性 总被引:1,自引:0,他引:1
本文利用M?nch不动点定理研究了Eanach空间中一类非线性积分微分方程解的存在性,给出的结论改进、推广了[1-2]中的结果. 相似文献
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Existence and Blowup of Solutions for Neutral Partial Integro-differential Equations with State-dependent Delay 下载免费PDF全文
In this paper, we study the existence and blowup of solutions for a neutral partial functional integro-differential equation with state-dependent delay in Banach space. The mild solutions are obtained by Sadovskii fixed point theorem under compactness condition for the resolvent operator, the theory of fractional power and α-norm are also used in the discussion since
the nonlinear terms of the system involve spacial derivatives. The strong
solutions are obtained under the lipschitz condition. In addition, based on the
local existence result and a piecewise extended method, we achieve a blowup
alternative result as well for the considered equation. Finally, an example is
provided to illustrate the application of the obtained results. 相似文献
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This paper investigates the nonlinear time-space fractional reaction-diffusion equations with nonlocal initial conditions. Based on the operator semigroup theory, we transform the time-space fractional reaction-diffusion equation into an abstract evolution equation. The existence and uniqueness of mild solution to the reaction-diffusion equation are obtained by solving the abstract evolution equation. Finally, we verify the Mittag-Leffler-Ulam stabilities of the nonlinear time-space fractional reaction-diffusion equations with nonlocal initial conditions. The results in this paper improve and extend some related conclusions to this topic. 相似文献
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一类非单调算子方程解的存在性定理 总被引:1,自引:0,他引:1
运用锥理论与非对称迭代方法,得到了Banach空间不具有单调性、连续性和紧性条件的一类算子方程解的存在唯一性,并给出了迭代序列收敛于解的误差估计.所得结果改进和推广了增(减)算子方程的某些已知结果. 相似文献
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This paper is mainly concerned with existence of mild solutions for first-order impulsive neutral integro-differential inclusions with nonlocal initial conditions in α-norm. We assume that the undelayed part generates an analytic resolvent operator and transforms it into an integral equation. By using a fixed point theorem for condensing multivalued maps, a main existence theorem is established. As an application of this main theorem, a practical consequence is derived for the sublinear growth case. Finally, we present an application to a neutral partial integro-differential equation with Dirichlet and nonlocal initial conditions. 相似文献