In the framework of $ G_{b} $-metric spaces, we introduce the concept of a generalized Ćirić-type contraction and obtain several fixed-point theorems for this contraction. First, we present a significant lemma, which is used to ensure that the Picard sequence is a Cauchy sequence. Using this lemma, we establish three fixed-point theorems satisfying different conditions. Second, we construct new examples to illustrate our results. As applications, we deduce the famous Ćirić fixed-point theorem in terms of $ b $-metric spaces using our results. In addition, we obtain Reich-type contraction fixed-point theorems in such a space using the aforementioned lemma. Our results improve and complement many recent findings. In particular, we substantially enlarge the range of the contraction constant in our results. Finally, we consider the existence and uniqueness of solutions for integral equation applying our new results.
Citation: Yunpeng Zhao, Fei He, Shumin Lu. Several fixed-point theorems for generalized Ćirić-type contraction in $ G_{b} $-metric spaces[J]. AIMS Mathematics, 2024, 9(8): 22393-22413. doi: 10.3934/math.20241089
In the framework of $ G_{b} $-metric spaces, we introduce the concept of a generalized Ćirić-type contraction and obtain several fixed-point theorems for this contraction. First, we present a significant lemma, which is used to ensure that the Picard sequence is a Cauchy sequence. Using this lemma, we establish three fixed-point theorems satisfying different conditions. Second, we construct new examples to illustrate our results. As applications, we deduce the famous Ćirić fixed-point theorem in terms of $ b $-metric spaces using our results. In addition, we obtain Reich-type contraction fixed-point theorems in such a space using the aforementioned lemma. Our results improve and complement many recent findings. In particular, we substantially enlarge the range of the contraction constant in our results. Finally, we consider the existence and uniqueness of solutions for integral equation applying our new results.
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Yunpeng Zhao, Fei He, Shumin Lu. Several fixed-point theorems for generalized Ćirić-type contraction in $ G_{b} $-metric spaces[J]. AIMS Mathematics, 2024, 9(8): 22393-22413. doi: 10.3934/math.20241089
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