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Extension operators for Sobolev spaces commuting with a given transform
Published online by Cambridge University Press: 18 May 2009
Abstract
We consider a real-valued function r = M(t) on the real axis, such that M(t) < 0 for t < 0. Under appropriate assumptions on M, the pull-back operator M* gives rise to a transform of Sobolev spaces Ws.p (-∞, 0) that restricts to a transform of Ws.p(-∞, ∞). We construct a bounded linear extension operator Ws.p(-∞, 0) → Ws.p(−∞, ∞), commuting with this transform.
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- Copyright © Glasgow Mathematical Journal Trust 1998
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