Fixed points for non-surjective expansion mappings
The contractive conditions of Popa (Demonstr. Math. 1990, 23, 213-218) were further improved for four non-surjective expansion mappings, and some common fixed point theorems under semi-compatible pairs of mappings are proved. Our main findings bring improvements to a number of results in the non-met...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
1998-01-01
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| Series: | International Journal of Mathematics and Mathematical Sciences |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1155/S0161171298000398 |
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| _version_ | 1832568022294855680 |
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| author | B. K. Sharma D. R. Sahu M. Bounias A. Bonaly |
| author_facet | B. K. Sharma D. R. Sahu M. Bounias A. Bonaly |
| author_sort | B. K. Sharma |
| collection | DOAJ |
| description | The contractive conditions of Popa (Demonstr. Math. 1990, 23, 213-218) were
further improved for four non-surjective expansion mappings, and some common
fixed point theorems under semi-compatible pairs of mappings are proved. Our
main findings bring improvements to a number of results in the non-metric
setting. Some implications for mathematical physics are raised with respect to
physical invariants |
| format | Article |
| id | doaj-art-b29e3d52ee414a05a815c61e94256bf1 |
| institution | Kabale University |
| issn | 0161-1712 1687-0425 |
| language | English |
| publishDate | 1998-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Mathematics and Mathematical Sciences |
| spelling | doaj-art-b29e3d52ee414a05a815c61e94256bf12025-02-03T00:59:56ZengWileyInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04251998-01-0121227728810.1155/S0161171298000398Fixed points for non-surjective expansion mappingsB. K. Sharma0D. R. Sahu1M. Bounias2A. Bonaly3School of Studies in Mathematics, Pt. Ravishankar Shukla University, Raipur 492 010, IndiaSchool of Studies in Mathematics, Pt. Ravishankar Shukla University, Raipur 492 010, IndiaUniversity of Avignon and INRA, Biomathematics Unit, Faculty of Sciences, Avignon F- 84 000, FranceMathematics, University of Paris X, FranceThe contractive conditions of Popa (Demonstr. Math. 1990, 23, 213-218) were further improved for four non-surjective expansion mappings, and some common fixed point theorems under semi-compatible pairs of mappings are proved. Our main findings bring improvements to a number of results in the non-metric setting. Some implications for mathematical physics are raised with respect to physical invariantshttp://dx.doi.org/10.1155/S0161171298000398Common fixed points; expansion mappings; semi. compatibility; d-complete topological spaces. |
| spellingShingle | B. K. Sharma D. R. Sahu M. Bounias A. Bonaly Fixed points for non-surjective expansion mappings International Journal of Mathematics and Mathematical Sciences Common fixed points; expansion mappings; semi. compatibility; d-complete topological spaces. |
| title | Fixed points for non-surjective expansion mappings |
| title_full | Fixed points for non-surjective expansion mappings |
| title_fullStr | Fixed points for non-surjective expansion mappings |
| title_full_unstemmed | Fixed points for non-surjective expansion mappings |
| title_short | Fixed points for non-surjective expansion mappings |
| title_sort | fixed points for non surjective expansion mappings |
| topic | Common fixed points; expansion mappings; semi. compatibility; d-complete topological spaces. |
| url | http://dx.doi.org/10.1155/S0161171298000398 |
| work_keys_str_mv | AT bksharma fixedpointsfornonsurjectiveexpansionmappings AT drsahu fixedpointsfornonsurjectiveexpansionmappings AT mbounias fixedpointsfornonsurjectiveexpansionmappings AT abonaly fixedpointsfornonsurjectiveexpansionmappings |