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Boundedness Types of Perturbations on the Growth of Semigroups
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作者 Zuheir Khidir Ahmed Abdelgader Nariman Khider Ahmed Abdalgadir +1 位作者 Entisar Bakhit Bashir Elshikh Abualez Alamin Ahmed Ali 《Advances in Pure Mathematics》 2023年第1期1-10,共10页
We study types of boundedness of a semigroup on a Banach space in terms of the Cesáro-average and the behavior of the resolvent at the origin and also exhibit a characterization of type Hille-Yosida for the gener... We study types of boundedness of a semigroup on a Banach space in terms of the Cesáro-average and the behavior of the resolvent at the origin and also exhibit a characterization of type Hille-Yosida for the generators of &#981;<sup>j</sup>-bounded strongly continuous semigroups. Furthermore, these results are used to investigate the effect of the Perturbation on the type of the growth of sequences. 展开更多
关键词 Cesáro Average C0-Semigroups BOUNDEDNESS perturbation stability Hille-Yosida Growth of Sequences
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Influence of the homotopy stability perturbation on physical variations of non-local opto-electronic semiconductor materials
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作者 A.El-Dali Mohamed I.A.Othman 《Frontiers of Optoelectronics》 2024年第4期109-123,共15页
In the current work,we investigate a novel technique specialized in stability perturbation theory to analyze the primary variations such as thermal,carrier,elastic,and mechanical waves in photothermal theory.The inter... In the current work,we investigate a novel technique specialized in stability perturbation theory to analyze the primary variations such as thermal,carrier,elastic,and mechanical waves in photothermal theory.The interface of the non-local semiconductor material is utilized to study the stability analysis.The problem is established using a 1D opto-electronic-thermoelastic deformation in the context of the photo-thermoelasticity(PTE)framework.The Laplace transform method is used to convert the system from the time domain into the frequency domain,and the boundary conditions for the thermal,elastic,and plasma waves are applied to the interface of the medium.The homotopy perturbation method was used as an innovative approach to analyze the stability of the non-local silicon’s primary physical fields.The numerical inversion method is applied,yielding many graphs focusing on important numerical factors such as non-local effects,thermo-energy,and thermo-electric coupling parameters.Investigating dual solutions between stable and unstable regions for critical parameters like thermo-electric and thermo-energy coupling factors demonstrates that the homotopy perturbation technique can effectively analyze the stability analysis.The comparison between silicon and germanium is illustrated graphically.Utilizing the homotopy perturbation technique,we can effectively examine the stability of the primary physical variations with the effect of some values for eigenvalues approaches. 展开更多
关键词 Homotopy perturbation method Opto-electronic deformation Laplace transform Non-local excitation Bifurcation solutions stability perturbation
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