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We require the following lemmawhich is a simple case of the Fredholm Alternative Theorem (see, for example, [22]) and leave thedetails for the reader:.

ρ̄h(ū) =2. πc. 1. 1dv̄ K(ū, v̄) ρ̄h(v̄). (2.46). It is of Fredholm-type and may be immediately expanded in the small parameter c anditeratively solved as

The analytic Fredholm theorem yields that for all δ [0, δ0], λ Mδ(λ)1 is meromor-phic.

0) (1,u) 6 R(uF(λ, 0)) holds;(H3) uF(λ,u) is a Fredholm operator of index zero whenever F(λ,u) = 0 with (λ,u) O;(H4) for ... It is therefore a Fredholm operator of index zero (see [6, Theorem 2.7.6]).

is. given by. π(HY ,T) = ind(T),. where ind(T) is the Fredholm index of T.

SPECTRA OF GRAPH NEIGHBORHOODS AND SCATTERING. DANIEL GRIESER. Abstract. Let (Gε)ε>0 be a family of ’ε-thin’ Riemannian manifolds modeledon a finite metric graph G, for example, the ε-neighborhood of an embeddingof G in some Euclidean space

Dispersive hydrodynamics of soliton condensates forthe Korteweg-de Vries equation. T. Congy, G.A. El, G. Roberti, and A. Tovbis. Abstract. We consider large-scale dynamics of non-equilibrium dense soliton gas for theKorteweg-de Vries (KdV) equation

Soliton-mean field interaction in Korteweg-de Vriesdispersive hydrodynamics. Mark J. Ablowitz1, Justin T. Cole2, Gennady A. El3, Mark A. Hoefer1, andXu-dan Luo4. 1Department of Applied Mathematics, University of Colorado, Boulder2Department of

Soliton Gas: Theory, Numerics and Experiments. Pierre Suret,1, Stephane Randoux,1 Andrey Gelash,2 Dmitry Agafontsev,3, 4 Benjamin Doyon,5 and Gennady El4. 1Univ. Lille, CNRS, UMR 8523 - PhLAM - Physique des Lasers Atomes et Molécules, F-59000 Lille