2020
DOI: 10.3934/dcdss.2020196
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Pseudospectral discretization of delay differential equations in <i>sun-star</i> formulation: Results and conjectures

Abstract: In this paper we study the pseudospectral approximation of delay differential equations formulated as abstract differential equations in the *-space. This formalism also allows us to define rigorously the abstract variation-of-constants formula, where the *-shift operator plays a fundamental role. By applying the pseudospectral discretization technique we derive a system of ordinary differential equations, whose dynamics can be efficiently analyzed by existing bifurcation tools. To better understand to what ex… Show more

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Cited by 16 publications
(11 citation statements)
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“…In the sequel we assume the following. The collocation nodes are the Chebyshev extrema in [0, l ], i.e., Under (A3) both and can be obtained rather easily 8 (see, e.g., [ 13 , 37 , 39 ]).…”
Section: Discretization and Convergence Analysismentioning
confidence: 99%
“…In the sequel we assume the following. The collocation nodes are the Chebyshev extrema in [0, l ], i.e., Under (A3) both and can be obtained rather easily 8 (see, e.g., [ 13 , 37 , 39 ]).…”
Section: Discretization and Convergence Analysismentioning
confidence: 99%
“…However, the distributed DDE formulation of cyclic models has some limitations. The most striking of these is the lack of established numerical techniques for the simulation and bifurcation analysis of infinite delay models, although recent work has alleviated this limitation somewhat [17,25] Nevertheless, the equivalence established in this work allows researchers to study the the mathematical model in whichever form is most convenient, and may elucidate otherwise hidden delayed processes.…”
Section: Discussionmentioning
confidence: 99%
“…5 For these and other related aspects see, e.g., [9] . See also [27] for a recent review of results on .…”
Section: Discretizationmentioning
confidence: 99%