Set-valued fixed-point theorems for generalized contractive mappings without the Hausdorff metric
β Scribed by Yeol Je Cho; Soawapak Hirunworakit; Narin Petrot
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 245 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0893-9659
No coin nor oath required. For personal study only.
β¦ Synopsis
In this paper, the concept of a set-valued contractive mapping is considered by using the idea of a generalized distance, such as the Ο -distance, in metric spaces without using the concept of the Hausdorff metric. Furthermore, under some mild conditions, we provide the existence theorems for fixed-point problems of the considered mapping. Hence, our results can be viewed as a generalization and improvement of many recent results.
π SIMILAR VOLUMES
In [N. Mizoguchi, W. Takahashi, Fixed point theorems for multi-valued mappings on complete metric spaces, J. Math. Anal. Appl. 141 (1989) 177-188] the authors gave a positive answer to the conjecture of S. Reich concerning the existence of fixed points of multi-valued mappings that satisfy certain c
a b s t r a c t Fixed point and coincidence results are presented for single-valued generalized Ο f -weakly contractive mappings on complete metric spaces (X, d), where Ο : [0, β) β [0, β) is a lower semicontinuous function with Ο(0) = 0 and Ο(t) > 0 for all t > 0 and f : E β X is a function such th