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A perturbation theorem for scalar operators

โœ Scribed by S. R. Foguel


Publisher
John Wiley and Sons
Year
1958
Tongue
English
Weight
129 KB
Volume
11
Category
Article
ISSN
0010-3640

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## Abstract In [2], Jockusch and Shore have introduced a new hierarchy of sets and operators called the REA hierarchy. In this note we prove analogues of the Friedberg Jump Theorem and the Sacks Jump Theorem for many REA operators. MSC: 03D25, 03D55.