2021
DOI: 10.1016/j.chaos.2021.110915
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An analysis of controllability results for nonlinear Hilfer neutral fractional derivatives with non-dense domain

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Cited by 78 publications
(17 citation statements)
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“…Roughly speaking, controllability generally means that it is possible to steer a dynamical control system from an arbitrary initial state to an arbitrary final state using the set of admissible controls. In recent years, many authors have made fruitful achievements on exact controllability and approximate controllability of the different nonlinear dynamical problems with or without delay; one can refer to the researcher's articles 11,16–38 and references therein. In many cases, deterministic models often fluctuate due to environmental noise, which is random or at least appears to be so.…”
Section: Introductionmentioning
confidence: 99%
“…Roughly speaking, controllability generally means that it is possible to steer a dynamical control system from an arbitrary initial state to an arbitrary final state using the set of admissible controls. In recent years, many authors have made fruitful achievements on exact controllability and approximate controllability of the different nonlinear dynamical problems with or without delay; one can refer to the researcher's articles 11,16–38 and references therein. In many cases, deterministic models often fluctuate due to environmental noise, which is random or at least appears to be so.…”
Section: Introductionmentioning
confidence: 99%
“…We have also the so-called Atangana-Baleanu fractional operator and the Caputo-Fabrizio derivative which are known as the fractional operators with non-singular kernels [4,5]. These singular and non-singular derivatives appear in many papers with applications to physical modeling [2,6,7], biological modeling [8,9,10,11,12,13,14], sciences and engineering modeling [15,16,17,18,19], mathematical physics modeling [20,21,22,23,24,25,26], physics modeling [24,27] and others domains [28,29,30,31,32]. The field of fractional calculus is interesting but there also exist many questions without responses.…”
Section: Introductionmentioning
confidence: 99%
“…e epidemic models and their time-discrete variations have been studied by Allen [17] and Ghosh et al [18]. Several approaches towards fractional-order mathematical models of COVID-19 were studied by the authors Alqhtani et al [19], Valliammal and Ravichandran [20], Nisar et al [21], Vijayakumar et al [22], and Alderremy et al [23]. However, the aforementioned studies and references mostly contain explicit approaches with respect to time-discrete epidemic models.…”
Section: Introductionmentioning
confidence: 99%
“…e authors Hussain et al [13] discussed about the complex systems and network science approaches, along with technological advances and data availability, are becoming instrumental for the design of effective containment strategies. In a nonsense region, Hilfer's neutral fractional derivative provided controllability results using Monch's method, Banach's contraction principle, fractional calculus, and semigroup property was studied by the authors Nisar et al [21]. Some recent updates regarding the modeling of the coronavirus, the authors Alderremy et al [23] constructed a mathematical model based on the fuzzy fractional derivative and obtained the results.…”
Section: Introductionmentioning
confidence: 99%