Zero sets of functions from non-quasi-analytic classes
Robert B. Hughes
Proc. Amer. Math. Soc. 27 (1971), 539-542
Proc. Amer. Math. Soc. 39 (1973), 651.
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Abstract: It is well known that any closed subset of the line is the zero set of a -function. One can also specify the orders of the zeros at the isolated points. The present paper improves this result by replacing the class of -functions by any non-quasi-analytic class of -functions.
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