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      Entire Functions in Weighted L2 and Zero Modes of the Pauli Operator with Non-Signdefinite Magnetic Field

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          Abstract

          For a real non-signdefinite function B(z), z ∈C, we investigate the dimension of the space of entire analytical functions square integrable with weight e ±2F , where the function F(z) = F(x1, x2) satisfies the Poisson equation ΔF = B. The answer is known for the function B with constant sign. We discuss some classes of non-signdefinite positively homogeneous functions B, where both infinite and zero dimension may occur. In the former case we present a method of constructing entire functions with prescribed behavior at infinity in different directions. The topic is closely related with the question of the dimension of the zero energy subspace (zero modes) for the Pauli operator.

          Translated abstract

          Para una función no signo definida B(z), z ∈ C, investigamos la dimensión del espacio de funciones analíticas enteras de cuadrado integrable con peso e ±2F , donde la función F(z) = F(x1, x2) verifica la ecuación de Poisson ΔF = B. La respuesta es conocida para la función B con signo constante. Discutimos algunas clases de funciones B no signo definida e positivamente homogéneas, donde dimensión zero y infinita pueden ocurrir. En el caso anterior nosotros presentamos un método de construir funciones enteras con un comportamiento en infinito prescrito en diferentes direcciones. El tópico es estrechamente relacionado con la cuestión de la dimensión del subespacio de energía zero para el operador de Pauli.

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          Spectral properties of Schrödinger operators with magnetic fields for a spin 12 particle

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            An introduction to complex analysis in several variables

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              Infiniteness of zero modes for the Pauli operator with singular magnetic field

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                Author and article information

                Journal
                cubo
                Cubo (Temuco)
                Cubo
                Universidad de La Frontera. Departamento de Matemática y Estadística. (Temuco, , Chile )
                0719-0646
                2010
                : 12
                : 1
                : 115-132
                Affiliations
                [02] orgnameSt. Petersburg State University orgdiv1Department of Mathematics and Mechanics Russia
                [01] orgnameUniversity of Gothenburg orgdiv1Chalmers University of Technology, and Department of Mathematics orgdiv2Department of Mathematics Sweden grigori@ 123456math.chalmers.se
                Article
                S0719-06462010000100011 S0719-0646(10)01200100011
                10.4067/S0719-06462010000100011
                3ac36495-8d72-420a-876f-c683053a36c9

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : October 2008
                : October 2008
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 5, Pages: 18
                Product

                SciELO Chile


                Zero modes,Entire functions,Pauli operators
                Zero modes, Entire functions, Pauli operators

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