Abstract
We construct an everywhere defined continuous operator on a separable CMS having the following property: it is not possible to cover the domain of this operator by denumerably many balls such that the oscillation of the operator in each ball of the covering is less than 1.
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Literature cited
G. S. Tseitin, “Algorithmic operators in constructive metric spaces,” Tr. Mat. Inst. Akad. Nauk SSSR,2, 295–361 (1962).
S. C. Kleene, Introduction to Metamathematics, New York (1952).
Additional information
Translated from Zapiski Nauchnykh Seminarov Leningradskogo Otdeleniya Matematicheskogo Instituta im. V. A. Steklova Akad. Nauk SSSR, Vol. 60, pp. 194–196, 1976. Results announced October 16, 1975.
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Pakhomov, S.V. Continuity of operators in separable constructive metric spaces. J Math Sci 14, 1554–1556 (1980). https://doi.org/10.1007/BF01693986
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DOI: https://doi.org/10.1007/BF01693986