Orbits in the Maximal Ideal Space of H{infty} |
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Authors: | Izuchi Keiji |
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Institution: | Department of Mathematics, Kanagawa University Yokohama 221, Japan |
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Abstract: | Let H be the Banach algebra of bounded analytic functions inthe open unit disc D. We can define the rotation in the maximalideal space M(H ). For a point x in M(H )\D, an orbit O(x) isnot closed in M(H ). It is proved that there exists a point xin M(H ) such that x is not contained in the Shilov boundaryX and cl O(x), the closure of O(x), contains X, and there existsa point y in M(H )\(D X) such that cl O(y) X. The rotationpresents many problems concerning H . The purpose of this paperis to discuss these problems. |
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