Bernstein's theorem for compact groups |
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Authors: | George Benke |
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Institution: | Georgetown University, Washington, D.C. 20057 USA |
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Abstract: | In this paper we generalize the classical Bernstein theorem concerning the absolute convergence of the Fourier series of Lipschitz functions. More precisely, we consider a group G which is finite dimensional, compact, and separable and has an infinite, closed, totally disconnected, normal subgroup D, such that is a Lie group. Using this structure, we define in a natural way the notion of Lipschitz condition, and then prove that a function which satisfies a Lipschitz condition of order greater than belongs to the Fourier algebra of G. |
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