Search Results - "Tunç, Osman"

On fractal-fractional Covid-19 mathematical model by Khan, Hasib, Ahmad, Farooq, Tunç, Osman, Idrees, Muhammad

“…In this article, we are studying a Covid-19 mathematical model in the fractal-fractional sense of operators for the existence of solution, Hyers-Ulam (HU)…”
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On the behaviors of solutions of systems of non-linear differential equations with multiple constant delays by Tunç, Osman

“…In this paper, non-perturbed and perturbed systems of non-linear differential equations with multiple constant delays are considered. Five new theorems on the…”
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Qualitative analysis of caputo fractional integro-differential equations with constant delays by Bohner, Martin, Tunç, Osman, Tunç, Cemil

“…In this paper, a nonlinear Volterra integro-differential equation with Caputo fractional derivative, multiple kernels, and multiple constant delays is…”
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Solution estimates to Caputo proportional fractional derivative delay integro-differential equations by Tunç, Osman, Tunç, Cemil

“…In this article, a class of scalar generalized Caputo proportional fractional derivative delay integro-differential equations (CPFrDIDEs) with multiple…”
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On the stability, integrability and boundedness analyses of systems of integro-differential equations with time-delay retardation by Tunç, Cemil, Tunç, Osman

“…In the paper, Tian and Wang (Appl Math Lett 105:106325, 8 pp, 2020, Theorem 1) took into consideration a linear system of integro-delay differential equations…”
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New Results on the Ulam–Hyers–Mittag–Leffler Stability of Caputo Fractional-Order Delay Differential Equations by Tunç, Osman

“…The author considers a nonlinear Caputo fractional-order delay differential equation (CFrDDE) with multiple variable delays. First, we study the existence and…”
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A fractional order Zika virus model with Mittag–Leffler kernel by Begum, Razia, Tunç, Osman, Khan, Hasib, Gulzar, Haseena, Khan, Aziz

“…Zika virus is one of the lethal virus which is a threat to humans health. It can be transmitted from human to human, from mosquitos to human, from human to…”
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Stability tests and solution estimates for non-linear differential equations by Tunç, Osman

“…This article deals with certain systems of delay differential equations (DDEs) and a system of ordinary differential equations (ODEs). Here, five new theorems…”
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Ulam stabilities of nonlinear iterative integro-differential equations by Tunç, Osman, Tunç, Cemil

“…In this paper, we deal with nonlinear iterative integro-functional differential equations (IIFDEs) of first order. We study the uniqueness of solutions and…”
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On the fundamental qualitative properties of integro-delay differential equations by Bohner, Martin, Tunç, Osman, Korkmaz, Erdal

“…This paper discusses qualitative properties of solutions of certain unperturbed and perturbed systems of nonlinear integro-delay differential equations…”
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Solution estimates and stability tests for nonlinear delay integro-differential equations by Pinelas, Sandra, Tunc, Osman

“…In this article, we examine various qualitative features of solutions of a nonlinear delay integro-differential equation. We prove three new theorems which…”
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On Ulam Stabilities of Delay Hammerstein Integral Equation by Tunç, Osman, Tunç, Cemil

“…In this paper, we consider a Hammerstein integral equation (Hammerstein IE) in two variables with two variables of time delays. The aim of this paper is to…”
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On Ulam stabilities of iterative Fredholm and Volterra integral equations with multiple time-varying delays by Tunç, Osman, Tunç, Cemil

“…In present study, we deal with nonlinear iterative Fredholm and Volterra integral equations (Fredholm and Volterra IEs) including variable time delays. We are…”
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Mathematical analysis of stochastic epidemic model of MERS-corona & application of ergodic theory by Hussain, Shah, Tunç, Osman, Rahman, Ghaus ur, Khan, Hasib, Nadia, Elissa

“…The “Middle East Respiratory” (MERS-Cov) is among the world’s dangerous diseases that still exist. Presently it is a threat to Arab countries, but it is a…”
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The analysis of some special results of a Lasota–Wazewska model with mixed variable delays by Yazgan, Ramazan, Tunç, Osman

“…This study is about getting some conditions that guarantee the existence and uniqueness of the weighted pseudo almost periodic (WPAP) solutions of a…”
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On the existence of solutions of non-linear 2D Volterra integral equations in a Banach Space by Chauhan, Harsh V. S., Singh, Beenu, Tunç, Cemil, Tunç, Osman

“…In this work, we examine the solvability of non-linear 2D Volterra integral equations through Petryshyn fixed point theorem in Banach space C ( [ 0 , c ] × [ 0…”
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On the Qualitative Analysis of Solutions of a Class of Nonlinear Differential Equations of the Second Order with Constant Delay by Tunc, Cemil, Tunc, Osman

“…We consider a class of nonlinear second-order differential equations with constant delay and investigate qualitative properties of the solutions, namely,…”
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A fractal–fractional COVID-19 model with a negative impact of quarantine on the diabetic patients by Khan, Hasib, Alzabut, Jehad, Tunç, Osman, Kaabar, Mohammed K.A.

“…In this article, we consider a Covid-19 model for a population involving diabetics as a subclass in the fractal–fractional (FF) sense of derivative. The study…”
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On the Fundamental Analyses of Solutions to Nonlinear Integro-Differential Equations of the Second Order by Tunc, Cemil, Tunc, Osman

“…In this article, a scalar nonlinear integro-differential equation of second order and a non-linear system of integro-differential equations with infinite…”
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On the asymptotic stability of solutions of stochastic differential delay equations of second order by Tunç, Osman, Tunç, Cemil

“…In this paper, we consider a non-linear stochastic differential delay equation (SDDE) of second order. We derive new sufficient conditions which guarantee…”
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