Strong and Δ-Convergence Theorems for Common Fixed Points of a Finite Family of Multivalued Demicontractive Mappings in CAT(0) Spaces
Let K be a nonempty closed and convex subset of a complete CAT(0) space. Let Ti:K→CBK,i=1,2,…,m, be a family of multivalued demicontractive mappings such that F:=⋂i=1mF(Ti)≠∅. A Krasnoselskii-type iterative sequence is shown to Δ-converge to a common fixed point of the family Ti,i=1,2,…,m. Strong co...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Abstract and Applied Analysis |
| Online Access: | http://dx.doi.org/10.1155/2014/805168 |
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| author | C. E. Chidume A. U. Bello P. Ndambomve |
| author_facet | C. E. Chidume A. U. Bello P. Ndambomve |
| author_sort | C. E. Chidume |
| collection | DOAJ |
| description | Let K be a nonempty closed and convex subset of a complete
CAT(0) space. Let Ti:K→CBK,i=1,2,…,m, be a family of multivalued demicontractive mappings such that F:=⋂i=1mF(Ti)≠∅. A Krasnoselskii-type iterative sequence is shown to Δ-converge to a common fixed point of
the family Ti,i=1,2,…,m. Strong convergence theorems are also proved
under some additional conditions. Our theorems complement and extend several recent important results on approximation of fixed points of certain nonlinear mappings in CAT(0) spaces. Furthermore, our method of the proof is of
special interest. |
| format | Article |
| id | doaj-art-c15870f4be0c48d7873dfab1b5dd6424 |
| institution | Kabale University |
| issn | 1085-3375 1687-0409 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Abstract and Applied Analysis |
| spelling | doaj-art-c15870f4be0c48d7873dfab1b5dd64242025-02-03T06:08:27ZengWileyAbstract and Applied Analysis1085-33751687-04092014-01-01201410.1155/2014/805168805168Strong and Δ-Convergence Theorems for Common Fixed Points of a Finite Family of Multivalued Demicontractive Mappings in CAT(0) SpacesC. E. Chidume0A. U. Bello1P. Ndambomve2African University of Science and Technology, Abuja, NigeriaAfrican University of Science and Technology, Abuja, NigeriaAfrican University of Science and Technology, Abuja, NigeriaLet K be a nonempty closed and convex subset of a complete CAT(0) space. Let Ti:K→CBK,i=1,2,…,m, be a family of multivalued demicontractive mappings such that F:=⋂i=1mF(Ti)≠∅. A Krasnoselskii-type iterative sequence is shown to Δ-converge to a common fixed point of the family Ti,i=1,2,…,m. Strong convergence theorems are also proved under some additional conditions. Our theorems complement and extend several recent important results on approximation of fixed points of certain nonlinear mappings in CAT(0) spaces. Furthermore, our method of the proof is of special interest.http://dx.doi.org/10.1155/2014/805168 |
| spellingShingle | C. E. Chidume A. U. Bello P. Ndambomve Strong and Δ-Convergence Theorems for Common Fixed Points of a Finite Family of Multivalued Demicontractive Mappings in CAT(0) Spaces Abstract and Applied Analysis |
| title | Strong and Δ-Convergence Theorems for Common Fixed Points of a Finite Family of Multivalued Demicontractive Mappings in CAT(0) Spaces |
| title_full | Strong and Δ-Convergence Theorems for Common Fixed Points of a Finite Family of Multivalued Demicontractive Mappings in CAT(0) Spaces |
| title_fullStr | Strong and Δ-Convergence Theorems for Common Fixed Points of a Finite Family of Multivalued Demicontractive Mappings in CAT(0) Spaces |
| title_full_unstemmed | Strong and Δ-Convergence Theorems for Common Fixed Points of a Finite Family of Multivalued Demicontractive Mappings in CAT(0) Spaces |
| title_short | Strong and Δ-Convergence Theorems for Common Fixed Points of a Finite Family of Multivalued Demicontractive Mappings in CAT(0) Spaces |
| title_sort | strong and δ convergence theorems for common fixed points of a finite family of multivalued demicontractive mappings in cat 0 spaces |
| url | http://dx.doi.org/10.1155/2014/805168 |
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