On tame operators between non-archimedean power series spaces |
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Authors: | Wiesław Śliwa Agnieszka Ziemkowska |
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Affiliation: | (1) Faculty of Mathematics and Computer Science, Adam Mickiewicz University, ul. Umultowska 87, 61-614 Poznań, Poland |
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Abstract: | Let p ∈ {1,∞}. We show that any continuous linear operator T from A 1(a) to A p (b) is tame, i.e., there exists a positive integer c such that sup x ‖T x ‖ k /|x| ck < ∞ for every k ∈ ℤ. Next we prove that a similar result holds for operators from A ∞(a) to A p (b) if and only if the set M b,a of all finite limit points of the double sequence (b i /a j ) i,j∈ℤ is bounded. Finally we show that the range of every tame operator from A ∞(a) to A ∞(b) has a Schauder basis. |
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Keywords: | Non-archimedean power series space tame operator Schauder basis |
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