Spiral waves linear and nonlinear theory / Björn Sandstede, Arnd Scheel.

Author/creator Sandstede, Björn
Other author Scheel, Arnd, 1966-
Format Electronic
Publication InfoProvidence, RI : American Mathematical Society, 2023.
Descriptionv, 126 pages : illustrations ; 26 cm.
Supplemental ContentFull text available from Ebook Central - Academic Complete
Subjects

SeriesMemoirs of the American Mathematical Society, 0065-9266 ; volume 285, number 1413 (third of 6 numbers)
Abstract "Spiral waves are striking self-organized coherent structures that organize spatiotemporal dynamics in dissipative, spatially extended systems. In this paper, we provide a conceptual approach to various properties of spiral waves. Rather than studying existence in a specific equation, we study properties of spiral waves in general reaction-diffusion systems. We show that many features of spiral waves are robust and to some extent independent of the specific model analyzed. To accomplish this, we present a suitable analytic framework, spatial radial dynamics, that allows us to rigorously characterize features such as the shape of spiral waves and their eigenfunctions, properties of the linearization, and finite-size effects. We believe that our framework can also be used to study spiral waves further and help analyze bifurcations, as well as provide guidance and predictions for experiments and numerical simulations. From a technical point of view, we introduce non-standard function spaces for the well-posedness of the existence problem which allow us to understand properties of spiral waves using dynamical systems techniques, in particular exponential dichotomies. Using these pointwise methods, we are able to bring tools from the analysis of one-dimensional coherent structures such as fronts and pulses to bear on these inherently two-dimensional defects"-- Provided by publisher.
Bibliography noteIncludes bibliographical references (pages 119-123) and index.
Access restrictionAvailable only to authorized users.
Technical detailsMode of access: World Wide Web
Genre/formElectronic books.
LCCN 2023023511
ISBN9781470463090 (paperback)
ISBN(pdf)

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