共查询到20条相似文献,搜索用时 928 毫秒
1.
M. Durea 《Nonlinear Analysis: Theory, Methods & Applications》2010,72(2):571-579
The aim of this paper is to obtain some openness results in terms of normal coderivative for parametric set-valued mappings acting between infinite dimensional spaces. Then, implicit multifunction results are obtained by simply specializing the openness results. Moreover, we study a kind of metric regularity of the implicit multifunction. The results of the paper generalize several recent results in literature. 相似文献
2.
A. Fiorenza
A. Mercaldo
J. M. Rakotoson
《Applied Mathematics Letters》2001,14(8):979-981We extend the results of [1–5] on the uniqueness of solutions of parabolic equations. Our results give also some regularity results which complete the existence results made in [6–8]. 相似文献
3.
Memudu Olaposi OlatinwoMihai Postolache 《Applied mathematics and computation》2012,218(12):6727-6732
In this paper, we obtain some stability results in complete convex metric spaces for nonselfmappings satisfying certain general contractivity condition. We prove our results for Jungck-Mann and Jungck-Ishikawa iterations. Our results extend several stability results in the literature. 相似文献
4.
在锥度量空间中,用压缩性函数代替具体实数,获得了c-距离下的映射的新的不动点定理.所得结果在条件上不要求映射的非减性,且第一个定理去掉了锥的正规性,第二个定理去掉了映射的连续性,改进了原有的许多重要结论,并给出了相应的例子. 相似文献
5.
Pasquale Vetro 《Rendiconti del Circolo Matematico di Palermo》2007,56(3):464-468
In this paper we consider a notion of g-weak contractive mappings in the setting of cone metric spaces and we give results
of common fixed points. This results generalize some common fixed points results in metric spaces and some of the results
of Huang and Zhang in cone metric spaces.
Supported by Universitá degli Studi di Palermo, R. S. ex 60%. 相似文献
6.
We extend conjugacy results from Lie algebras to their Leibniz algebra generalizations. The proofs in the Lie case depend on anti-commutativity. Thus it is necessary to find other paths in the Leibniz case. Some of these results involve Cartan subalgebras. Our results can be used to extend other results on Cartan subalgebras. We show an example here and others will be shown in future work. 相似文献
7.
Ghasem Soleimani Rad Hassen Aydi Poom Kumam Hamidreza Rahimi 《Rendiconti del Circolo Matematico di Palermo》2014,63(2):287-300
In this paper, we prove some common tripled fixed point and tripled coincidence point results for contractive conditions in a cone metric type space. Our results extend, unify and generalize well-known results in the literature, in particular the recent results of Aydi et al. (Fixed Point Theory Appl 2012:134, 2012). Some examples are also presented to validate our obtained results and new concepts. 相似文献
8.
We have presented some new results for periodic solutions to a class of Hamiltonian systems with potential indefinite in sign. These results improve and correct some known results in the literature. 相似文献
9.
Hemant Kumar Nashine Zoran Kadelburg Stojan Radenovi? 《Applied mathematics and computation》2012,218(9):5422-5432
We establish coupled coincidence point results for mixed g-monotone mappings under general contractive conditions in partially ordered cone metric spaces over solid cones. We also present results on existence and uniqueness of coupled common fixed points. Our results generalize, extend and unify several well known comparable results in the literature. To illustrate our results and to distinguish them from the earlier ones, we equip the paper with examples. 相似文献
10.
Ya-Nan Ma 《计算数学(英文版)》1990,8(3):261-275
In [2], general approximation results for the solution in a neighborhood of a simple limit point are given. In this paper we give projective approximation results for the solutions in a neighborhood of a double limit point. Application of these results to a nonlinear partial differential equation and numerical results are given. 相似文献
11.
In this paper, we prove some existence results on coincidence and common fixed points of two pairs of self mappings without continuity under relatively weaker commutativity requirement in Menger PM spaces. Our results generalize many known results in Menger as well as metric spaces. Some related results are also derived besides furnishing illustrative examples. 相似文献
12.
Memudu O. Olatinwo 《Central European Journal of Mathematics》2008,6(4):610-621
In this paper, the concept of multi-valued weak contraction of Berinde and Berinde [8] for the Picard iteration in a complete
metric space is extended to the case of multi-valued weak contraction for the Jungck iteration in a complete b-metric space. While our main results generalize the recent results of Berinde and Berinde [8], they also extend, improve
and unify several classical results pertainning to single and multi-valued contractive mappings in the fixed point theory.
Our results also improve the recent results of Daffer and Kaneko [16].
相似文献
13.
OSCILLATIONFORNONLINEARNEUTRALDIFFERENTIALEQUATIONS(申建华)(王志成)湖南大学,邮编:410082ShenJianhua;WangZhicheng(HunanUniversity,)Abstract... 相似文献
14.
本文将给出偏序集零调与可缩的几个充分条件,它们包含和深化了文[1]和[2]中的一些结果,把[2]中的一些结果推广到无限偏序集的情形. 相似文献
15.
Properties of serial kanban systems 总被引:1,自引:0,他引:1
Sridhar R. Tayur 《Queueing Systems》1992,12(3-4):297-318
In this paper we show some structural results of a kanban system by using results about the underlying GSMP. The main results from this connection are: dominance of allocations, optimal partition, upper and lower bounds on throughput, consistency of the IPA derivative, convexity of throughput as a function of service time parameters and concavity of throughput with respect to number of kanbans. Although the dominance and the partition results were obtained previously by sample path arguments, the proofs here are less cumbersome and generalize the earlier results. The second-order properties for kanban lines are new. These results form a basis for results in multi-product lines where proofs by sample paths require extensive notation. 相似文献
16.
范瑞琴 《应用泛函分析学报》1999,(3)
利用连续线性泛函满足的某些条件,给出了关于m-增生、奇算子的一些映射结果,这些结果是对已有文献中相应结果的改进.其中第二节中考虑了算子的奇性,运用Borsuk定理得出了m一增生、奇算子的映射定理;在第三节中讨论了凝聚映射的相应结果. 相似文献
17.
Manuel AMANN 《Frontiers of Mathematics in China》2016,11(5):1099-1122
We depict recent developments in the field of positive sectional curvature, mainly, but not exclusively, under the assumption of isometric torus actions. After an elaborate introduction to the field, we shall discuss various classification results, before we provide results on the computation of Euler characteristics. This will be the starting point for an examination of more involved invariants and further techniques. In particular, we shall discuss the Hopf conjectures, related decomposition results like the Wilhelm conjecture, results in differential topology and index theory as well as in rational homotopy theory, geometrically formal metrics in positive curvature and much more. The results we present will be discussed for arbitrary dimensions, but also specified to small dimensions. This survey article features mainly depictions of our own work interest in this area and cites results obtained in different collaborations; full statements and proofs can be found in the respective original research articles. 相似文献
18.
Aftab Hussain Muhammad Arsh Mujahid Abbas 《Journal of Applied Analysis & Computation》2017,7(3):1112-1126
The purpose of this paper is to prove theorem which generalize the corresponding results of Rhoades [B. E. Rhoades, Two New Fixed Point Theorems, Gen. Math. Notes, 2015, 27(2), 123--132]. This paper is to introduce the notion of dynamic process for generalized $F-$contraction mappings and to obtain coincidence and common fixed point results for such process. It is worth mentioning that our results do not rely on the commonly used range inclusion condition. We provide some examples to support our results. As an application of our results, we obtain the existence and uniqueness of solutions of dynamic programming and integral equations. Our results provide extension as well as substantial generalizations and improvements of several well known results in the existing comparable literature. 相似文献
19.
20.
Zoran D. Mitrovi? 《Journal of Mathematical Analysis and Applications》2007,330(1):451-461
In this paper we prove the existence of a solution to the scalar equilibrium problem in generalized convex space. As applications, we derive results on the best approximations and simultaneous approximations. The results of this paper generalize some known results in the literature. 相似文献