Results 11 to 20 of about 422,657 (323)

Coincidence point theorems for multivalued mappings [PDF]

International Journal of Mathematics and Mathematical Sciences, 1993
Some new coincidence point and fixed point theorems for multivalued mappings in complete metric space are proved. The results presented in this paper enrich and extend the corresponding results in [5-16, 20-25, 29].
Shih-Sen Chang, Young-Cheng Peng
doaj   +2 more sources

A Random Coincidence Point Theorem

Journal of Mathematical Analysis and Applications, 2000
Let \((\Omega ,\Sigma)\) be a measurable space, \(M\) a weakly compact subset of a Banach space \(X\), \(f:\Omega\times M\to M\) and \(T:\Omega\times M\to 2^{M}\) random operators. The main result of this note gives sufficient conditions for the existence of a random coincidence point of \(T\) and \(f\), i.e., a measurable mapping \(\xi:\Omega\to M ...
Naseer Shahzad, Abdul Latif
openalex   +4 more sources

On Approximate Coincidence Point Properties and Their Applications to Fixed Point Theory [PDF]

Journal of Applied Mathematics, 2012
We first establish some existence results concerning approximate coincidence point properties and approximate fixed point properties for various types of nonlinear contractive maps in the setting of cone metric spaces and general metric spaces.
Wei-Shih Du
doaj   +4 more sources

New coincidence and common fixed point theorems

Applied General Topology, 2009
In this paper, we obtain some extensions and a generalization of a remarkable fixed point theorem of Proinov. Indeed, we obtain some coincidence and fixed point theorems for asymptotically regular non-self and self-maps without requiring continuity and ...
S.L. Singh, Apichai Hematulin, Rajendra Pant   +2 more
doaj   +4 more sources

On random coincidence point theorems [PDF]

Topological Methods in Nonlinear Analysis, 2005
The author obtains a few coincidence point theorems for a pair of single-valued and multivalued non-commuting random operators. The main result is a mild extension of the work of the author and \textit{A. Latif} [J. Math. Anal. Appl. 245, No.~2, 633--638 (2000; Zbl 0970.60074)]. Some special cases of the work of other authors are also discussed.
Naseer Shahzad
openalex   +5 more sources

Coincidence and fixed point theorems with applications

Topological Methods in Nonlinear Analysis, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Qamrul Hasan Ansari, Adam Idzik, Jen‐Chih Yao   +2 more
openalex   +6 more sources

NONLINEAR CONDITIONS FOR COINCIDENCE POINT AND FIXED POINT THEOREMS [PDF]

Taiwanese Journal of Mathematics, 2012
In this paper, we first establish some new types of fixed point theorem which generalize and improve Berinde-Berinde's fixed point theorem, Mizoguchi-Takahashi's fixed point theorem and many results in [W.-S. Du, Some new results and generalizations in metric fixed point theory, Nonlinear Anal. 73 (2010), 1439-1446] and references therein.
Wei–Shih Du, Shao-Xuan Zheng
openalex   +4 more sources

Coincidence points in uniform spaces [PDF]

International Journal of Mathematics and Mathematical Sciences, 1992
Summary: We give a coincidence point theorem in sequentially complete Hausdorff uniform spaces. Our result reduces to a result of \textit{S. P. Acharya} [Yokohama Math. J. 22, 105-116 (1974; Zbl 0295.54058)].
Tomasz Kubiak, Y. J. Cho
openaire   +4 more sources

Some results on coincidence points [PDF]

Bulletin of the Australian Mathematical Society, 1999
In this paper we prove some coincidence point theorems for nonself single-valued and multivalued maps satisfying a nonexpansive condition. These extend fixed point theorems for multivalued maps of a number of authors.
Abdul Latif, Ian Tweddle
openaire   +2 more sources

Practical challenges in data‐driven interpolation: Dealing with noise, enforcing stability, and computing realizations

International Journal of Adaptive Control and Signal Processing, EarlyView., 2023
Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley   +1 more source