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 |
| Published: |
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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| Summary: | 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 |
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| ISSN: | 0161-1712 1687-0425 |