Whitham Deformations of the Korteweg-de Vries Equation

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dc.contributor.advisor Bohle, Christoph (Prof. Dr.)
dc.contributor.author Ziefle, Jonas
dc.date.accessioned 2023-10-12T15:11:38Z
dc.date.available 2023-10-12T15:11:38Z
dc.date.issued 2023-10-12
dc.identifier.uri http://hdl.handle.net/10900/146209
dc.identifier.uri http://nbn-resolving.de/urn:nbn:de:bsz:21-dspace-1462098 de_DE
dc.identifier.uri http://dx.doi.org/10.15496/publikation-87550
dc.description.abstract In this thesis, a new independent approach to obtain a dispersionless version of the KdV hierarchy is presented and used to describe a class of solutions that are accessible by the generalized hodograph method. The Korteweg-de Vries (KdV) equation is a dispersive and non-linear partial differential equation (PDE) in one spatial dimension and time. It originates from the observation and description of solitary shallow-water waves and later became famous in the context of the Fermi–Pasta–Ulam–Tsingou problem. An aspect that has drawn a lot of attention is that the KdV equation possesses infinitely many conserved quantities and corresponding symmetries – giving rise to the structure of an integrable hierarchy. The focus of the thesis is on a dispersionless version of the integrable KdV hierarchy which is obtained by applying adiabatic theory from classical mechanics. The resulting KdV Whitham hierarchy is again integrable, but in a more general way. While the dispersive equation admits stable solitary waves as solutions, on the dispersionless side breaking waves occur. The theoretical description of the dispersionless hierarchy yields algebraic-geometric and differential-geometric structures which are defined on the space of the conserved quantities of the dispersive hierarchy. In particular, Euler–Poisson–Darboux equations, known from classical differential geometry, can be used to characterize solutions of the KdV Whitham hierarchy. en
dc.language.iso de de_DE
dc.language.iso en de_DE
dc.publisher Universität Tübingen de_DE
dc.rights ubt-podok de_DE
dc.rights.uri http://tobias-lib.uni-tuebingen.de/doku/lic_mit_pod.php?la=de de_DE
dc.rights.uri http://tobias-lib.uni-tuebingen.de/doku/lic_mit_pod.php?la=en en
dc.subject.ddc 510 de_DE
dc.title Whitham Deformations of the Korteweg-de Vries Equation en
dc.type PhDThesis de_DE
dcterms.dateAccepted 2023-09-19
utue.publikation.fachbereich Mathematik de_DE
utue.publikation.fakultaet 7 Mathematisch-Naturwissenschaftliche Fakultät de_DE
utue.publikation.noppn yes de_DE

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