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...
Main Authors: | , , , |
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Format: | Article |
Language: | English |
Published: |
Hindawi Limited
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 |