科研之友
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摘要
For a wide class of separable Banach function spaces X on a"e, we construct a Schwartz function phi such that the set of translates {phi(t - lambda), lambda a I >} spans X whenever I > is an exponentially small perturbation of integers. Essentially, the only exception is the space L (1)(a"e), which cannot be spanned by a uniformly discrete translates of a single function.
- 出版日期2018-6
