AHAli H. Hakami

Ali H. Hakami

Jazan University
*This is an algorithmically generated author record based on publicly available information.
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Ali H. Hakami has a total of 33 co-authors. Here are the top co-authors by number of shared publications:

Latest Publications

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    Application of the Laplace least square residual power series method to fractional KdV, CRD, and Burgers’ equations

    by Yousef Jawarneh, Waleed Hamali, Musaad S. Aldhabani, Ali H. Hakami, Khalil Hadi Hakami, Samaruddin Jebran

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    Two-Fluid Model for Anisotropic Fluid Spacetime with Specific Stress–Energy Tensor Constraints and f(R)-Gravity

    by Mohd Danish Siddiqi, Ali H. Hakami

    A two-fluid model can be described by an anisotropic fluid matter, and we introduced the notion of an anisotropic fluid spacetime. The algebraic and differential properties of an anisotropic fluid spacetime equipped with several forms of the stress–energy tensor is the focus of this research. We show that an anisotropic fluid spacetime with a radial pressure p‖, transverse pressure p⊥, and the energy density ρ is a generalized quasi-Einstein spacetime. We prove that a dark matter era or an anisotropic fluid spacetime with vanishing vorticity is represented by an anisotropic fluid spacetime endowed with a covariant constant stress–energy tensor; on the contrary, a dark matter era or the expansion scalar vanishes is represented by an anisotropic fluid spacetime endowed with a Codazzi type of stress–energy tensor, as long as A stays invariant under the velocity vector field ζ. Furthermore, we use the Killing velocity vector field, parallel vector fields to characterize Ricci Semi-Symmetric, T-recurrent, Pseudo-Ricci symmetric, and R^-harmonic anisotropic fluid spacetime. We find that the anisotropic fluid spacetime reflect a stiff matter and a radiation era with these geometric symmetries. Finally, we provide findings for an anisotropic fluid spacetime with a divergence-free matter tensor and the vanishing space-matter tensor and explore the dynamical aspects of cosmological epoch of an anisotropic fluid spacetime coupled with f(R)-gravity.

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    Gradient Expanding Ricci Solitons Type Inequalities on Submanifolds in Quaternion Kaehler Manifolds with Bi-Slant Factor

    by Ali H. Hakami, Mohd Danish Siddiqi

    In this article, we study the Ricci soliton on quaternion bi-slant submanifolds of quaternion Kaehler manifolds. We obtain a lower-bound-type inequality in terms of expanding gradient Ricci solitons with a gradient-type vector field for the quaternion bi-slant submanifold of quaternion Kaehler manifolds. Additionally, we derive a series of lower-bound-type inequalities for semi-slant submanifolds, CR-submanifolds, hemi-slant submanifolds, slant submanifolds, invariant anti-invaraint submanifolds and totally real submanifolds in the same quaternion Kaehler manifolds. Finally, we discuss a double inequality for expanding gradient Ricci solitons on submanifolds in quaternion Kaehler manifolds and extend the same double inequality in terms of gradient Ricci solitons with a scalar concircular field on semi-slant, quaternion CR-submanifolds of quaternion Kaehler manifolds.

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    Construction of novel plethora of soliton solutions for conformable fractional HIV-1 infection model

    by Yousef Jawarneh, Musawa Yahya Almusawa, Ali H. Hakami, Abdullah Ali H. Ahmadini, Ahmad Albaity, Noor Ullah Noori

    Cited by 2
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    Investigation of soliton dynamics and bifurcations in the fifth-order nonlinear Wazwaz equation

    by Md Nur Hossain, Salah Mahmoud Boulaaras, Ali H. Hakami, Ahmad Albaity, Hadeel AlQadi, Md. Mamun Miah

    This study explores the significant role of soliton solutions in being stable and localized wave phenomena through diverse fields, including optical communications, fluid dynamics, and plasma physics. The investigation focuses on the fifth-order nonlinear Wazwaz equation, selected for its integrable structure and its effectiveness in modeling complex nonlinear physical processes. The modified Sardar sub-equation method is employed to obtain exact solitary wave solutions. This technique yields a wide range of analytical forms that can be written via trigonometric and hyperbolic functions. The results are shown through broad graphical analyses such as 3D, 2D, and density plots that illustrate different wave structures, including dark, lattice, periodic singular, and single solitons. In addition, a bifurcation exploration is functioned to investigate the system’s dynamic properties. Overall, this study enhances our theoretical understanding of soliton dynamics in the fifth-order Wazwaz equation and highlights its wide range of potential applications in both scientific and engineering fields.

    Cited by 1
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    Electrically charged stellar structures in f(Q) symmetric teleparallel gravity

    by M. R. Shahzad, Wajiha Habib, H. Nazar, Asifa Ashraf, Ali H. Hakami, Ali M. Mubaraki

    Cited by 5
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    Exploring the stability of ultra-compact anisotropic dark energy stars with maximum allowable mass in $R+\chi (R^{2}+\eta R^{3})$ gravity

    by Hammad Nazar, Ghulam Abbas, M. R. Shahzad, Asifa Ashraf, Ali H. Hakami, Ali M. Mubaraki

    In recent years, the modeling of compact astrophysical objects (COs) has garnered significant attention from various research groups, particularly in efforts to determine their stable structures. This interest has been further amplified by the incorporation of dark energy as an additional source within the relativistic interior geometries of these stellar objects. In this paper, we present new structural properties of anisotropic, static, and spherically symmetric compact stars, characterized by a two-fluid distribution comprising ordinary baryonic matter and dark energy, within the framework of the gravity theory f(R). We derive a novel class of exact analytical solutions to the modified field equations by employing the well-established Tolman–Buchdahl solutions as seed ansatz for the $$g_{tt}$$ g tt and $$g_{rr}$$ g rr metric potentials, in conjunction with a linear dark energy equation of state. The unknown parameters involved in these seed solutions, along with the dark energy coupling factor $$\omega $$ ω , are determined by a smooth matching of the interior and exterior regions in the hypersurface of the boundary. To analyze the physical viability of our model, we apply it to the compact star PSR $$J1614-2230$$ J 1614 - 2230 , using the widely studied and cosmologically consistent $$f(R)=R+\chi \Big (R^{2}+\eta R^{3}\Big )$$ f ( R ) = R + χ ( R 2 + η R 3 ) gravity model. The obtained space-time geometry is assessed on the basis of several physical constraints, including the regularity of metric components, the viability of matter variables, the validity of state parameters and energy conditions, and various stability factors. Additionally, we examine the mass-radius profile, compactness, and surface redshift to ensure the model’s physical acceptability. Notably, our analysis reveals that the maximum allowable mass and compactness of the proposed dark energy star model exceed observational data, providing strong implications within this modified gravity framework. This suggests that such a model has the potential to surpass conventional observational predictions. In conclusion, our results confirm that the proposed solutions are physically viable and realistic, effectively mimicking a stable ultra-compact dark-energy star. These findings offer new insights into the relativistic stellar framework, highlighting the intricate interplay between extended gravity theories and a two-fluid distribution.

    Cited by 7
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    Quantum–Fractal–Fractional Operator in a Complex Domain

    by Adel A. Attiya, Rabha W. Ibrahim, Ali H. Hakami, Nak Eun Cho, Mansour F. Yassen

    In this effort, we extend the fractal–fractional operators into the complex plane together with the quantum calculus derivative to obtain a quantum–fractal–fractional operators (QFFOs). Using this newly created operator, we create an entirely novel subclass of analytical functions in the unit disk. Motivated by the concept of differential subordination, we explore the most important geometric properties of this novel operator. This leads to a study on a set of differential inequalities in the open unit disk. We focus on the conditions to obtain a bounded turning function of QFFOs. Some examples are considered, involving special functions like Bessel and generalized hypergeometric functions.

    Cited by 6
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    Solving Volterra-Hammerstein nonlinear integral equations via fixed point theory in complex-valued suprametric spaces

    by Amnah Essa Shammaky, Ali H. Hakami

    The Volterra-Hammerstein integral equation plays a crucial role in the control of robotic manipulators, which are widely used in industrial automation, medical robotics, and space exploration. These systems present significant control challenges due to their nonlinear behaviors and memory-dependent effects. In this research, we establish novel common fixed point theorems for generalized rational contractions within the framework of complex-valued suprametric spaces. Leveraging these theoretical advancements, we apply the derived results to solve the Volterra-Hammerstein integral equation, demonstrating its significance in robotic manipulator control. To emphasize the originality and practical applicability of our findings, a comprehensive illustrative example is provided.

    Cited by 3
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    A Study of Some Problems on the Dirichlet Characters (mod q)

    by Ali H. Hakami

    Consider q to be an integer, and χ to be a Dirichlet character (mod q). The main purpose of this paper is using the analytic methods to study some problems related to the Dirichlet character (mod q).

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