Fourier multipliers of Lipschitz spaces |
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Authors: | T.S Quek Leonard Y.H Yap |
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Affiliation: | 1. Department of Mathematics, National University of Singapore, Singapore 0511, Republic of Singapore;2. Department of Mathematics, University of Washington, Seattle, Washington 98195 USA |
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Abstract: | Let G denote an infinite, compact, metrizable, 0-dimensional, Abelian group. The following are characterized: (i) the multipliers from one Lipschitz space Lip(α, p; G) to another Lipschitz space Lip(β, q; G) for 0 < α < β < ∞ and 1 ? p, q ? ∞; and (ii) the multipliers from Lip(α, p; G) to Lip(β, q; G) for 0 < β ? α < ∞ and 1 < q ? 2 ? p < ∞. Two special cases of (i), namely the case q = ∞ and the case p = 1, were obtained by the authors in an earlier publication (1981). A. Zygmund (J. Math. Mech.8 (1959), 889–895) and T. Mizuhara (Tôhoku Math. J.24 (1972), 263–268) have characterized the multipliers of certain Lipschitz spaces defined on the circle group. |
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