Decomposition of semi-continuous functions into the sum of quasi-continuous functions and the oscillation of almost continuous functions (in Ukrainian)

Author O. V. Maslyuchenko
ovmasl@gmail.com
Чернiвецького нацiонального унiверситету iменi Юрiя Федьковича

Abstract We prove that every semi-continuous function on a metrizable space is decompose into sum of two quasi-continuous functions. And then we obtain a new characterization of the oscillation of almost continuous functions.
Keywords semi-continuous function; almost continuous function
Reference 1. Маслюченко О.В. Коливання майже неперервних функцiй// Науковий вiсник Чернiвецького унi- верситету. Математика. – 2010. – V.528. – С. 104–110.

2. Энгелькинг Р. Общая топология. – Москва: Мир, 1986. – 752с.

Pages 205-214
Volume 35
Issue 2
Year 2011
Journal Matematychni Studii
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