Results 31 to 40 of about 738 (182)
Open Mathematics, 2022 This study elucidates the sufficient conditions for the first-order nonlinear differential equations with periodic coefficients and time-varying delays to have positive periodic solutions.
Han Xiaoling, Lei Ceyu
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International Journal of Differential Equations, Volume 2026, Issue 1, 2026.In this paper, utilizing the concept of neutrosophic metric spaces proposed by Kirisci and Simsek, we establish a fixed point theorem of Edelstein type within this framework. A numerical example is provided to illustrate the validity of the main result. Furthermore, we present an application to a general SIR‐type epidemic model.
Vishal Gupta +3 more
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Open Mathematics, 2022 In this work, the solvability for an inverse problem of a nonlinear parabolic equation with nonlocal integral overdetermination supplementary condition is examined.
Huntul Mousa J. +3 more
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International Journal of Mathematics and Mathematical Sciences, Volume 2026, Issue 1, 2026.In this paper, we study algebraic structures associated with homomorphisms and derivations, which play a significant role in physics and engineering. Our main focus is on the Ulam–Hyers stability of homomorphism and derivation structures related to a class of two‐dimensional additive–quadratic functional equations in C∗‐ternary algebras.
Javad Shokri, Shikha Binwal
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Fixed Points of Suzuki Contractive Mappings in Modular b‐Metric Spaces With an Application
Journal of Applied Mathematics, Volume 2026, Issue 1, 2026.We introduce the concept of a generalized ZC‐type Suzuki contraction utilizing the generalized framework of metric spaces known as the partial modular b‐metric space in the light of an amorphous binary relation. This conceptual advancement facilitates the derivation of a series of relation–theoretical common fixed‐point theorems, underscoring the ...
Gopi Prasad, Emanuel Guariglia
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Demonstratio Mathematica, 2023 The paradigm of choice practice represents the psychological theory of learning in the development of moral judgment. It is concerned with evaluating the implications of several choices and selecting one of them to implement.
Turab Ali +3 more
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On the Stability of Fractional Integro-Differential Equations of Ψ-Hilfer Type
Journal of Function SpacesMSC2020 Classification: 26A33, 26D10 ...
Malayin A. Mohammed +2 more
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Solvability and Stability of Solutions of (q, τ)‐Fractional Integro‐Differential Models
Journal of Applied Mathematics, Volume 2026, Issue 1, 2026.In this paper, we investigate a set of nonlinear (q, τ)‐fractional Fredholm integrodifferential equations that involve memory‐type integral kernels and generalized fractional derivatives. Using a Galerkin technique based on (q, τ)‐Legendre polynomials, we designed an approximation solution and provided a numerical scheme for calculating the integral ...
Shaher Momani +3 more
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Journal of Applied Mathematics, Volume 2026, Issue 1, 2026.This paper investigates positive solutions for an implicit Caputo fractional boundary value problem of order 0 < ν < 1 on [0, T] with a nonlocal integral boundary condition. By reformulating the problem as an equivalent nonlinear Volterra integral equation, an associated operator on C([0, T], ℝ) is defined, and fixed‐point theory in a cone is employed.
Ngo Ngoc Hung, Youssri Hassan Youssri
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Journal of Function Spaces, Volume 2026, Issue 1, 2026.This paper presents a critical analysis of several recent fixed‐point results involving interpolative and rational contractions in super metric spaces and related frameworks. We first show that certain claimed fixed‐point theorems, including a result concerning (ρ, λ)‐interpolative Kannan contractions, do not provide genuinely new contributions, since ...
Arsalan Hojjat Ansari +3 more
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