On unconditional exponential bases in weak weighted spaces on segment

IF 0.5 Q3 MATHEMATICS Ufa Mathematical Journal Pub Date : 2016-01-01 DOI:10.13108/2016-8-4-88
K. P. Isaev, A. Lutsenko, R. S. Yulmukhametov
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Abstract

We show that the existence of unconditional exponential bases is not determined by the growth characteristics of a weight function. In order to do this, we construct examples of convex weights with arbitrarily slow growth near the boundary such that unconditional exponential bases do not exist in the corresponding space.
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节上弱加权空间中的无条件指数基
我们证明了无条件指数基的存在性不是由权函数的生长特性决定的。为了做到这一点,我们构造了在边界附近具有任意缓慢增长的凸权的例子,使得无条件指数基不存在于相应的空间中。
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