Abstract
We study dichotomy questions for weighted function spaces of Besov and Triebel–Lizorkin type where the weight is related to the distance of some point to a d-set Г, 0 < d < n, and the trace is taken on G. We can prove that – depending on the function space, the weight and the set Г – there occurs an alternative: either the trace on Г exists, or smooth functions compactly supported outside Г are dense in the space. Such a phenomenon is called dichotomy. The paper is based on trace results in [33] and the atomic decomposition in [18] and perfectly fits together with corresponding unweighted results in [51].
Mathematics Subject Classification (2010). 46E35.
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Haroske, D.D. (2012). Dichotomy in Muckenhoupt Weighted Function Space: A Fractal Example. In: Brown, B., Lang, J., Wood, I. (eds) Spectral Theory, Function Spaces and Inequalities. Operator Theory: Advances and Applications(), vol 219. Springer, Basel. https://doi.org/10.1007/978-3-0348-0263-5_5
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