Extended Branciari quasi-b-distance spaces, implicit relations and application to nonlinear matrix equations

Springer Science and Business Media LLC - Tập 2021 - Trang 1-21 - 2021
Reena Jain1, Hemant Kumar Nashine2, Vahid Parvaneh3
1Mathematics Division, SASL, VIT Bhopal University, Madhya Pradesh, India
2Department of Mathematics, School of Advanced Sciences, Vellore Institute of Technology, Vellore, India
3Department of Mathematics, Gilan-E-Gharb Branch, Islamic Azad University, Gilan-E-Gharb, Iran

Tóm tắt

This study introduces extended Branciari quasi-b-distance spaces, a novel implicit contractive condition in the underlying space, and basic fixed-point results, a weak well-posed property, a weak limit shadowing property and generalized Ulam–Hyers stability. The given notions and results are exemplified by suitable models. We apply these results to obtain a sufficient condition ensuring the existence of a unique positive-definite solution of a nonlinear matrix equation (NME) $\mathcal{X}=\mathcal{Q} + \sum_{i=1}^{k}\mathcal{A}_{i}^{*} \mathcal{G(X)}\mathcal{A}_{i}$ , where $\mathcal{Q}$ is an $n\times n$ Hermitian positive-definite matrix, $\mathcal{A}_{1}$ , $\mathcal{A}_{2}$ , …, $\mathcal{A}_{m}$ are $n \times n$ matrices, and $\mathcal{G}$ is a nonlinear self-mapping of the set of all Hermitian matrices that are continuous in the trace norm. We demonstrate this sufficient condition for the NME $\mathcal{X}= \mathcal{Q} +\mathcal{A}_{1}^{*}\mathcal{X}^{1/3} \mathcal{A}_{1}+\mathcal{A}_{2}^{*}\mathcal{X}^{1/3} \mathcal{A}_{2}+ \mathcal{A}_{3}^{*}\mathcal{X}^{1/3}\mathcal{A}_{3}$ , and visualize this through convergence analysis and a solution graph.

Tài liệu tham khảo

Aliouche, A., Djoudi, A.: Common fixed point theorems for mappings satisfying an implicit relation without decreasing assumption. Hacet. J. Math. Stat. 36(1), 11–18 (2007)

Bakhtin, I.A.: The contraction mapping principle in quasi metric spaces. Funkc. Anal. Ulianowsk Gos. Ped. Inst. 30, 243–253 (1999)

Chen, L., Huang, S., Li, C., Zhao, Y.: Several fixed-point theorems for F-contractions in complete Branciari b-metrics, and applications. J. Funct. Spaces 2020, 7963242 (2020)

Nashine, H.K., Shil, S., Garai, H., Dey, L.K.: Common fixed point results in ordered left (right) quasi b-metric spaces and applications. J. Math. 2020, Article ID 8889453 (2020)

Păcurar, M., Rus, I.A.: Fixed point theory for cyclic ϕ-contractions. Nonlinear Anal. 72, 1181–1187 (2010)

Popa, V.: Well-posedness of fixed point problems in orbitally complete metric spaces. Stud. Cerc. St. Ser. Mat. Univ. 16 (2006), Supplement. Proceedings of ICMI 45, Bacau, Sept. 18–20, 209–214 (2006)

Popa, V.: Well-posedness of fixed point problems in compact metric spaces. Bul. Univ. Petrol-Gaze, Ploiesti, Sec. Mat. Inform. Fiz. 60(1), 1–4 (2008)

Ran, A.C.M., Reurings, M.C.B.: On the matrix equation \(X + A^{*}F(X)A = Q\): solutions and perturbation theory. Linear Algebra Appl. 346, 15–26 (2002)

Rus, I.A.: The theory of a metrical fixed point theorem: theoretical and applicative relevances. Fixed Point Theory 9, 541–559 (2008)

Shah, M.H., Hussain, N.: Nonlinear contractions in partially ordered quasi b-metric spaces. Commun. Korean Math. Soc. 27(1), 117–128 (2012)