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The stationary KdV hierarchy and so(2,1) as a spectrum generating algebra | | H.-D.Doebner
; R.Z.Zhdanov
; | | Date: |
23 Sep 1998 | | Subject: | Mathematical Physics; Analysis of PDEs | math-ph hep-th math.AP math.MP quant-ph | | Abstract: | The family F of all potentials V(x) for which the Hamiltonian H in one space dimension possesses a high order Lie symmetry is determined. A sub-family F’, which contains a class of potentials allowing a realization of so(2,1) as spectrum generating algebra of H through differential operators of finite order, is identified. Furthermore and surprisingly, the families F and F’ are shown to be related to the stationary KdV hierarchy. Hence, the "harmless" Hamiltonian H connects different mathematical objects, high order Lie symmetry, realization of so(2,1)-spectrum generating algebra and families of nonlinear differential equations. We describe in a physical context the interplay between these objects. | | Source: | arXiv, math-ph/9809021 | | Services: | Forum | Review | PDF | Favorites | |
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