Coincidence and fixed point theorems for single-valued and multi-valued maps generalizing recent results of Suzuki and Kikkawa are obtained. Various applications, including the existence of common solutions of certain functional equations are presented.
New fixed point theorems for asymptotically regular multi-valued maps
β Scribed by S.L. Singh; S.N. Mishra; Rajendra Pant
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 387 KB
- Volume
- 71
- Category
- Article
- ISSN
- 0362-546X
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β¦ Synopsis
Recently, extending ΔiriΔ's quasi-contraction to a very general setting, Proinov [Petko D. Proinov, Fixed point theorems in metric spaces, Nonlinear Anal. 64 (2006) 546-557] obtained a remarkable fixed point theorem. We utilize Proinov's contractive type hypotheses for a self-map of a metric space to obtain very general fixed point theorems for multi-valued maps in metric spaces.
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
Using certain weak conditions of commutativity we prove some common fixed point theorems in complete metrically convex spaces which, in turn, generalize results due to Assad and Kirk, Itoh, Khan, and several others.