Regarding the Hausdorff measure of noncompactness, we provide and demonstrate a generalization of Petryshyn's fixed point theorem in Banach algebras. Comparing this theorem to Schauder and Darbo's fixed point theorems, we can skip demonstrating closed, convex and compactness properties of the investigated operators. We employ our fixed point theorem to provide the existence findings for the product of $ n $-nonlinear integral equations in the Banach algebra of continuous functions $ C(I_a) $, which is a generalization of various types of integral equations in the literature. Lastly, a few specific instances and informative examples are provided. Our findings can successfully be extended to several Banach algebras, including $ AC, C^1 $ or $ BV $-spaces.
Citation: Ateq Alsaadi, Manochehr Kazemi, Mohamed M. A. Metwali. On generalization of Petryshyn's fixed point theorem and its application to the product of $ n $-nonlinear integral equations[J]. AIMS Mathematics, 2023, 8(12): 30562-30573. doi: 10.3934/math.20231562
Regarding the Hausdorff measure of noncompactness, we provide and demonstrate a generalization of Petryshyn's fixed point theorem in Banach algebras. Comparing this theorem to Schauder and Darbo's fixed point theorems, we can skip demonstrating closed, convex and compactness properties of the investigated operators. We employ our fixed point theorem to provide the existence findings for the product of $ n $-nonlinear integral equations in the Banach algebra of continuous functions $ C(I_a) $, which is a generalization of various types of integral equations in the literature. Lastly, a few specific instances and informative examples are provided. Our findings can successfully be extended to several Banach algebras, including $ AC, C^1 $ or $ BV $-spaces.
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Ateq Alsaadi, Manochehr Kazemi, Mohamed M. A. Metwali. On generalization of Petryshyn's fixed point theorem and its application to the product of $ n $-nonlinear integral equations[J]. AIMS Mathematics, 2023, 8(12): 30562-30573. doi: 10.3934/math.20231562
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