Abstract
For a small closed disk D in the complex plane the uniform closure A in C ( D ) of the polynomials in z 2 and a second function of the form f 2 , with f behaving as [zbar], is considered. It has been shown before, using theory of polynomial convexity, that A p C ( D ) for some choices of f , while for other choices of f the situation A = C ( D ) can occur. A new class of functions f is presented for which A = C ( D ).
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