序度量空间中的可比线性压缩
Comparable linear contractions in ordered metric spaces
摘要:
为了改进g-单调性条件,本文引入了定义在序集上的映射的g-可比较性的概念,并利用它证明了序度量空间中不具有g-单调性的线性压缩的重合点的存在唯一性结果.我们的结果推广了Ran和Reurings(Proc.Amer.Math.Soc.132(2004),no.5,1435-1443),Nieto和Rodriguez-Lopez(Acta Math. Sin. 23(2007),no.12,2205-2212)、Turinici(Libertas Math.31(2011),49-55)、Turinici(Math. Student 81(2012),no.1-4,219-229)和Doric等人(RACSAM 108(2014),no.2,503-510)和类似的其他人。
英文摘要:
In this paper, with a view to improve the g-monotonicity condition, we introduce the notion of g-comparability of a mapping defined on an ordered set and utilize the same to prove some existence and uniqueness results on coincidence points for linear contraction without g-monotonicity in ordered metric spaces. Our results extend some classical and well known results due to Ran and Reurings (Proc. Amer. Math. Soc. 132(2004), no.5, 1435-1443), Nieto and Rodriguez-Lopez (Acta Math. Sin. 23(2007), no.12, 2205-2212), Turinici (Libertas Math. 31(2011), 49-55), Turinici (Math. Student 81(2012), no.1-4, 219-229) and Doric et al. (RACSAM 108(2014), no.2, 503-510) and similar others.
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