A novel analytical treatment for the Ambartsumian delay differential equation with a variable coefficient

The Ambartsumian delay differential equation with a variable coefficient is considered in this paper. An effective transformation is produced to convert the extended Ambartsumian equation to the pantograph model. Two kinds of analytical solutions are determined. The first solution is expressed as an...

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Main Authors: Rana M. S. Alyoubi, Abdelhalim Ebaid, Essam R. El-Zahar, Mona D. Aljoufi
Format: Article
Language:English
Published: AIMS Press 2024-12-01
Series:AIMS Mathematics
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Online Access:https://www.aimspress.com/article/doi/10.3934/math.20241696
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author Rana M. S. Alyoubi
Abdelhalim Ebaid
Essam R. El-Zahar
Mona D. Aljoufi
author_facet Rana M. S. Alyoubi
Abdelhalim Ebaid
Essam R. El-Zahar
Mona D. Aljoufi
author_sort Rana M. S. Alyoubi
collection DOAJ
description The Ambartsumian delay differential equation with a variable coefficient is considered in this paper. An effective transformation is produced to convert the extended Ambartsumian equation to the pantograph model. Two kinds of analytical solutions are determined. The first solution is expressed as an exponential function multiplied by an infinite power series. The second solution is obtained as an infinite series in terms of exponential functions. Several exact solutions are established for different forms of the extended Ambartsumian equation under specific relations. In addition, the convergence analysis is addressed theoretically. Moreover, numeric calculations are conducted to estimate the accuracy. The results reveal that the present analysis is efficient and accurate and can be further applied to similar delay models in a straightforward manner.
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series AIMS Mathematics
spelling doaj-art-7801dbca74634cd5a9d49d523872b24a2025-01-23T07:53:25ZengAIMS PressAIMS Mathematics2473-69882024-12-01912357433575810.3934/math.20241696A novel analytical treatment for the Ambartsumian delay differential equation with a variable coefficientRana M. S. Alyoubi0Abdelhalim Ebaid1Essam R. El-Zahar2Mona D. Aljoufi3Department of Mathematics, Faculty of Science, University of Tabuk, P.O. Box 741, Tabuk 71491, Saudi ArabiaDepartment of Mathematics, Faculty of Science, University of Tabuk, P.O. Box 741, Tabuk 71491, Saudi ArabiaDepartment of Mathematics, College of Science and Humanities in Al-Kharj, Prince Sattam bin Abdulaziz University, P.O. Box 83, Al-Kharj 11942, Saudi ArabiaDepartment of Mathematics, Faculty of Science, University of Tabuk, P.O. Box 741, Tabuk 71491, Saudi ArabiaThe Ambartsumian delay differential equation with a variable coefficient is considered in this paper. An effective transformation is produced to convert the extended Ambartsumian equation to the pantograph model. Two kinds of analytical solutions are determined. The first solution is expressed as an exponential function multiplied by an infinite power series. The second solution is obtained as an infinite series in terms of exponential functions. Several exact solutions are established for different forms of the extended Ambartsumian equation under specific relations. In addition, the convergence analysis is addressed theoretically. Moreover, numeric calculations are conducted to estimate the accuracy. The results reveal that the present analysis is efficient and accurate and can be further applied to similar delay models in a straightforward manner.https://www.aimspress.com/article/doi/10.3934/math.20241696ambartsumian equationdelayexact solutionseries solution
spellingShingle Rana M. S. Alyoubi
Abdelhalim Ebaid
Essam R. El-Zahar
Mona D. Aljoufi
A novel analytical treatment for the Ambartsumian delay differential equation with a variable coefficient
AIMS Mathematics
ambartsumian equation
delay
exact solution
series solution
title A novel analytical treatment for the Ambartsumian delay differential equation with a variable coefficient
title_full A novel analytical treatment for the Ambartsumian delay differential equation with a variable coefficient
title_fullStr A novel analytical treatment for the Ambartsumian delay differential equation with a variable coefficient
title_full_unstemmed A novel analytical treatment for the Ambartsumian delay differential equation with a variable coefficient
title_short A novel analytical treatment for the Ambartsumian delay differential equation with a variable coefficient
title_sort novel analytical treatment for the ambartsumian delay differential equation with a variable coefficient
topic ambartsumian equation
delay
exact solution
series solution
url https://www.aimspress.com/article/doi/10.3934/math.20241696
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