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Local linear operators and multicontour solutions of homogeneous coupled map lattices
Authors:L Yu Glebskii
Institution:(1) N. I. Lobachevski Nizhnii Novgorod State University, Institute of Applied Physics, Russian Academy of Sciences, Nizhnii Novgorod
Abstract:Theorems are proved establishing a relationship between the spectra of the linear operators of the formA+Ωg iBigi −1 andA+B i, whereg i∈G, andG is a group acting by linear isometric operators. It is assumed that the closed operatorsA andB i possess the following property: ‖B iA−1gBjA−1‖→0 asd(e,g)→∞. Hered is a left-invariant metric onG ande is the unit ofG. Moreover, the operatorA is invariant with respect to the action of the groupG. These theorems are applied to the proof of the existence of multicontour solutions of dynamical systems on lattices. Translated fromMatematicheskie Zametki, Vol. 65, No. 1, pp. 37–47, January, 1999.
Keywords:local operators  spectrum  Banach space  multicontour solution  coupled map lattices  homogeneous lattice  group action            G-invariant operators
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