Peer-reviewed, citable articles published ahead of their issue.
Open Access
Research Article·pp. 1–17·Online FirstAug 2026
Ahmed S. Rahby, Mohamed A. Abdou, Gamal A. Mosa
Published Online: 31 Aug 2026DOI: 10.47974/JIM-2149 In this paper: We investigate the existence and uniqueness of solutions to the second kind of generalized nonlinear Volterra-Fredholm integral equations (GNV-FIEs). These equations are analyzed using the Banach fixe...
Open Access
Research Article·pp. 1–15·Online FirstAug 2026
R. Shahin, M. Mohammed Jabarulla
Published Online: 29 Aug 2026DOI: 10.47974/JIM-2623 In this paper: This paper introduces advanced irregularity measures for Pythagorean fuzzy graphs under threshold conditions. Two types of indices are proposed. The first type focuses on edge-based irregularity, incl...
Open Access
Research Article·pp. 1–12·Online FirstAug 2026
Bülent Bilgehan, Ali Özyapıcı, Özlem Sabuncu
Published Online: 27 Aug 2026DOI: 10.47974/JIM-2406 In this paper: In the realm of electrical circuit analysis, this paper presents a groundbreaking approach that revolutionizes the handling of nonlinear differential equations. Our method not only provides exact solu...
Open Access
Research Article·pp. 1–9·Online FirstAug 2026
Ria Sharma, Surjeet Singh Chauhan (Gonder)
Published Online: 27 Aug 2026DOI: 10.47974/JIM-2636 In this paper: Fixed point results are used in program verification, semantics of programming languages and recursive function theory, where multiple mappings may represent different processes or transformations. We...
Open Access
Research Article·pp. 1–9·Online FirstAug 2026
Tania Chib, Surjeet Singh Chauhan (Gonder)
Published Online: 27 Aug 2026DOI: 10.47974/JIM-2644 In this paper: The main objective of this paper is to develop a two-step fractional Newton-Raphson method for solving non-linear equations using the Caputo-Fabrizio fractional derivative. In further detail, we discu...
Open Access
Research Article·pp. 1–9·Online FirstAug 2026
Jasmine Kaur, Surjeet Singh Chauhan (Gonder)
Published Online: 27 Aug 2026DOI: 10.47974/JIM-2645 In this paper: This manuscript investigates a new generalized F-contraction of Boyd-Wong type with respect to cone-b metric space. First, we prove a main theoretical result using this new contraction, then to suppor...
Open Access
Research Article·pp. 1–7·Online FirstAug 2026
Nikita Chib, Surjeet Singh Chauhan (Gonder)
Published Online: 27 Aug 2026DOI: 10.47974/JIM-2647 In this paper: Nonlinear equations are used to model the real world phenomenon which are not adequately represented by linear equations. A three-stage iterative algorithm applying memory is developed in this study....
Open Access
Research Article·pp. 1–9·Online FirstAug 2026
Swati Tomar, Surjeet Singh Chauhan (Gonder)
Published Online: 27 Aug 2026DOI: 10.47974/JIM-2650 In this paper: This study presents a new M*-Noor hybrid approach for approximating fixed point of Kannan Suzuki Condition (KSC) type mappings in CAT(0) space. This method combines M* iteration with the Noor iteratio...
Open Access
Research Article·pp. 1–10·Online FirstJul 2026
Iqbal Jebril, Zoubir Dahmani, Lynda Marouf
Published Online: 01 Jul 2026DOI: 10.47974/JIM-2459 In this paper: We study mathematical perturbed equations that can be used to describe how learner motivation, engagement, and proficiency develop together in English as a Foreign Language (EFL) contexts. The basic s...
Open Access
Research Article·pp. 1–18·Online FirstJun 2026
Mohamed Bezziou, Zoubir Dahmani
Published Online: 08 Jun 2026DOI: 10.47974/JIM-2405 In this paper: In this paper, we study the existence, uniqueness and stability in the sense of Ulam-Hyers Mittag-Leffler approach for a particular class of nonlinear coupled systems of Caputo fractional differential...
Open Access
Research Article·pp. 1–13·Online FirstJun 2026
Samira Heidari, Mostafa Eslami
Published Online: 02 Jun 2026DOI: 10.47974/JIM-2096 In this paper: In this study, the Volterra lattice system is investigated as a semi-discrete version of the modified KdV equation. Finding exact solutions for this system is challenging due to its applications in un...
Open Access
Research Article·pp. 1–15·Online FirstJun 2026
Mohammed Kaid, Chaimaa Kahlallou, Zoubir Dahmani
Published Online: 02 Jun 2026DOI: 10.47974/JIM-2483 In this paper: We examine the solution to problem fractional with respect derivatives of Caputo. Our approach is mainly based on fractional calculus, particularly fractional derivatives and integrals, together with...
Open Access
Research Article·pp. 1–21·Online FirstJun 2026
Yacine Boulatiour, Amina Boucenna, Souad Ayadi, Abdelkader Benali
Published Online: 02 Jun 2026DOI: 10.47974/JIM-2513 In this paper: This paper is structured in two parts, both focusing on the analysis of nonlinear coupled systems using fractional calculus. In the first part, we study a beam deflection-type system with sequential C...
Open Access
Research Article·pp. 1–11·Online FirstMay 2026
Stefan M. Stefanov
Published Online: 26 May 2026DOI: 10.47974/JIM-2427 In this paper: The graphical solution of 2 × 2, 2 × n, m × 2 matrix games is considered, and examples for applying this approach are presented.
Open Access
Research Article·pp. 1–10·Online FirstMay 2026
Iqbal Jebril, Zoubir Dahmani
Published Online: 26 May 2026DOI: 10.47974/JIM-2430 In this paper: This paper investigates the dynamics of a nonlinear elastic beam governed by a space-fractional differential equation of Caputo type, where the fractional order lies in the range z ∈ (3,4). A small pa...
Open Access
Research Article·pp. 1–9·Online FirstMay 2026
Midoune Noureddine, Rakdi Mohamed Anouar
Published Online: 18 May 2026DOI: 10.47974/JIM-2392 In this paper: We investigate symplectic structures on 2-step nilpotent Lie algebras as well as affine structures on filiform Lie algebras, and we establish a necessary condition for the existence of such affine str...
Open Access
Research Article·pp. 1–20·Online FirstMay 2026
Besma Ayed
Published Online: 18 May 2026DOI: 10.47974/JIM-2402 In this paper: The significance of this study lies in its extension of Olsen’s foundational result concerning the classical average box dimension [24], thus broadening its reach and relevance. Specifically, this pap...
Open Access
Research Article·pp. 1–27·Online FirstMay 2026
Ibrahim Slimane, Muhammad Uzair Awan, Zarnab Aslam
Published Online: 15 May 2026DOI: 10.47974/JIM-1995 In this paper: The major goal of the current article is to establish various novel fractional Dragomir-Agarwal inequalities utilizing Atangana-Baleanu fractional integral operator. We primarily employ the class of g...
Open Access
Research Article·pp. 1–14·Online FirstMay 2026
K. Boukerrioua, T. Ghrissi, Mohamed Ali Hammami
Published Online: 15 May 2026DOI: 10.47974/JIM-2314 In this paper: The aim purpose of the present work is to investigate a nonlinear Gronwall-Bellman- Bihari-Gamidov’s type inequality. This investigation allows us to study the asymptotic behavior of some differential...
Open Access
Research Article·pp. 1–15·Online FirstMay 2026
Zühal Küçükarslan Yüzbas, Ebru Cavlak Aslan, Dae Won Yoon
Published Online: 14 May 2026DOI: 10.47974/JIM-2443 In this paper: In this work, we study time evolution equations of null curves according to acceleration vector fields in Minkowski 3-space. First of all, we find a solution of the nonlinear system of time evolution...