## Límites restringidos en funciones naturales con gráficos aritméticos

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2003-12-01##### Author

Mycka, Jerzy

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In this paper we consider the process of defining natural functions by the operation of in nite limit F(x) = limy!1;y2A f(x; y) (also limes inferior and limes superior are taken into account). But two restrictions are assumed: the given natural function f has a graph belonging to some stage of an arithmetical hierarchy, the index of a limit runs only through a given arithmetical subset A of natural numbers. We investigate the arithmetical class of the graph of the function F, where the respective classes of the graph of f and the set A are known. The corollary for the Turing degrees of F is formulated.Keywords: Theory of computation, Innite limits.

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Technological innovations; Computer science; Technology development; Systems engineering; Investigations; Information and communication technologies; ICT's##### Link to resource

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