oalib

OALib Journal期刊

ISSN: 2333-9721

费用:99美元

投稿

时间不限

( 2024 )

( 2023 )

( 2022 )

( 2021 )

自定义范围…

匹配条件: “ Lower semicontinuous” ,找到相关结果约3021条。
列表显示的所有文章,均可免费获取
第1页/共3021条
每页显示
Continuous version of Filippov's theorem for a Sturm-Liouville type differential inclusion
Aurelian Cernea
Electronic Journal of Differential Equations , 2008,
Abstract: Using Bressan-Colombo results, concerning the existence of continuous selections of lower semicontinuous multifunctions with decomposable values, we prove a continuous version of Filippov's theorem for a Sturm-Liuoville differential inclusion. This result allows to obtain a continuous selection of the solution set of the problem considered.
一类带有对数非线性项的拟线性椭圆方程解的存在性及多重性
Existence and Multiplicity of Solutions for a Class of Quasilinear Elliptic Equations with Logarithmic Nonlinearity
 [PDF]

刘晓莉
Pure Mathematics (PM) , 2022, DOI: 10.12677/PM.2022.123044
Abstract:
本文讨论一类带有对数非线性项的拟线性椭圆方程解的存在性和多重性。对主项系数A(x,t)提出合适的条件,使用弱下半连续泛函的非光滑临界点定理证明该问题存在山路解和无穷多非平凡解。
In this paper, we consider the existence and multiplicity of solutions of a class of quasilinear elliptic equations with logarithmic nonlinearity. Under some appropriate conditions for the principal coefficient A(x,t), we use the nonsmooth critical point theorem of weak lower semicontinuous functional to prove the problem has mountain path solutions and infinite nontrivial solutions.
Generalized Quasi Variational-Type Inequalities  [PDF]
Mohammad Kalimuddin Ahmad, Salahuddin .
Applied Mathematics (AM) , 2012, DOI: 10.4236/am.2012.31010
Abstract: In this paper, we define the concepts of (η,h)-quasi pseudo-monotone operators on compact set in locally convex Hausdorff topological vector spaces and prove the existence results of solutions for a class of generalized quasi variational type inequalities in locally convex Hausdorff topological vector spaces.
On M-Asymmetric Semi-Open Sets and Semicontinuous Multifunctions in Bitopological Spaces  [PDF]
Levy K. Matindih, Edwin Moyo
Advances in Pure Mathematics (APM) , 2021, DOI: 10.4236/apm.2021.114016
Abstract: The purpose of this paper is to introduce the notions of m-asymmetric semiopen sets and M-asymmetric semicontinuous multifunctions defined between asymmetric sets satisfying certain minimal conditions in the framework of bitopological spaces. Some new characterizations of m-asymmetric semiopen sets and M-asymmetric semicontinuous multifunctions will be investigated and several fundamental properties will be obtained.
Some generalizations of Caristi's fixed point theorem with applications
Seong-Hoon Cho
International Journal of Mathematical Analysis , 2013,
Abstract: In this paper, we prove some generalizations of Caristi’s fixed pointtheorem, and then we give applications to Ekeland’s variational principleand maximal element theorem.
An Existence Theorem of Solutions for the System of Generalized Vector Quasi-Variational-Like Inequalities  [PDF]
Shamshad Husain, Sanjeev Gupta, Vishnu Narayan Mishra
American Journal of Operations Research (AJOR) , 2013, DOI: 10.4236/ajor.2013.33029
Abstract:


In this paper, we introduce and study the system of generalized vector quasi-variational-like inequalities in Hausdorff topological vector spaces, which include the system of vector quasi-variational-like inequalities, the system of vector variational-like inequalities, the system of vector quasi-variational inequalities, and several other systems as special cases. Moreover, a number of C-diagonal quasiconvexity properties are proposed for set-valued maps, which are natural generalizations of the g-diagonal quasiconvexity for real functions. Together with an application of continuous selection and fixed-point theorems, these conditions enable us to prove unified existence results of solutions for the system of generalized vector quasi-variational-like inequalities. The results of this paper can be seen as extensions and generalizations of several known results in the literature.


Maximal elements and equilibria of generalized games for ° ’ °-majorized and condensing correspondences
George Xian-Zhi Yuan,E. Tarafdar
International Journal of Mathematics and Mathematical Sciences , 1999, DOI: 10.1155/s0161171299221795
Abstract: In this paper, we first give an existence theorem of maximal elements for a new type of preference correspondences which are ° ’ °-majorized. Then some existence theorems for compact (resp., non-compact) qualitative games and generalized games in which the constraint or preference correspondences are ° ’ °-majorized (resp., ¨-condensing) are obtained in locally convex topological vector spaces.
Existence theorems for differential inclusions with nonconvex right hand side
Nikolaos S. Papageorgiou
International Journal of Mathematics and Mathematical Sciences , 1986, DOI: 10.1155/s0161171286000595
Abstract: In this paper we prove some new existence theorems for differential inclusions with a nonconvex right hand side, which is lower semicontinuous or continuous in the state variable, measurable in the time variable and takes values in a finite or infinite dimensional separable Banach space.
An application of a noncompactness technique to an investigation of the existence of solutions to a nonlocal multivalued Darboux problem
Ludwik Byszewski,Nikolaos S. Papageorgiou
International Journal of Stochastic Analysis , 1999, DOI: 10.1155/s1048953399000180
Abstract: The aim of the paper is to prove two theorems on the existence of solutions to a nonlocal multivalued Darboux problem. The first theorem concerns the case when the orientor field is convex valued. The second theorem concerns the case when the orientor field is nonconvex valued. A compactness type condition involving the ball measure of noncompactness is applied.
Saddle point theorems on generalized convex spaces
Kim In-sook,Park Sehie
Journal of Inequalities and Applications , 2000,
Abstract: A sharpened extension of Komiya's saddle point theorem is obtained for generalized convex spaces. Moreover, we show that convexity of the involved sets in his theorem can be replaced by acyclicity, and continuity of the involved functions by lower and upper semicontinuity.
第1页/共3021条
每页显示


Home
Copyright © 2008-2020 Open Access Library. All rights reserved.