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KP line solitons and Tamari lattices | | Aristophanes Dimakis
; Folkert Mueller-Hoissen
; | | Date: |
9 Sep 2010 | | Abstract: | The KP-II equation possesses a class of line soliton solutions which can be
qualitatively described via a tropical approximation as a chain of rooted
binary trees, except at "critical" events where a transition to a different
rooted binary tree takes place. We prove that these correspond to maximal
chains in Tamari lattices (which are poset structures on associahedra). We
further derive results that allow to compute details of the evolution,
including the critical events. Moreover, we present some insights into the
structure of the more general line soliton solutions. All this yields a
characterization of possible evolutions of line soliton patterns on a shallow
fluid surface (provided that the KP-II approximation applies). | | Source: | arXiv, 1009.1886 | | Services: | Forum | Review | PDF | Favorites | |
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