In this article we show how to construct hierarchies of partial differential equations from the vertex operator representations of toroidal Lie algebras. In the smallest exampleᎏrank 2 toroidal cover of sl ᎏwe obtain an extension of the 2 KdV hierarchy. We use the action of the corresponding infinit
A New Explicit Expression for the Korteweg – De Vries Hierarchy
✍ Scribed by Ivan Avramidi; Rainer Schimming
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 222 KB
- Volume
- 219
- Category
- Article
- ISSN
- 0025-584X
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✦ Synopsis
We derive an improved fully explicit expression for the right -hand sides of the matrix KdV hierarchy using the relation to the heat kernel of the one -dimensional Schrödinger operator.
Our method of "matrix elements" produces, moreover, an explicit expression for the powers of a Schrödinger-like differential operator of any order.
📜 SIMILAR VOLUMES
## Abstract The aim of this work is to consider the Korteweg–de Vries equation in a finite interval with a very weak localized dissipation namely the __H__^−1^‐norm. Our main result says that the total energy decays locally uniform at an exponential rate. Our analysis improves earlier works on the
We study the following initial-boundary value problem for the Korteweg-de Vries-Burgers equation, 2 for t → ∞ uniformly with respect to x > 0 where α = 0 1, 0 q t = q/ √ π e -q 2 , 1 q t = 1/2 √ π √ t e -q 2 2q √ t -1 + e -2q √ t .