Numeral system with two bases having different signs and related special functions

We consider an analytic system of encoding of numbers ($G_2$-representative) from an interval $[0;g_0]$ by means of the two-symbol alphabet $A\equiv\{0;1\}$ with two bases having different signs: $g_0\in(0;1)$ and $g_1=g_0-1$.The system is based on expansion of the numerical series. Functions with n...

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Bibliographic Details
Date:2020
Author Affiliations:
  • I.M. Lysentko — National Pedagogical Dragomanov University
  • Yu.P. Maslova — National Pedagogical Dragomanov University
  • M.V. Pratsevytyi — National Pedagogical Dragomanov University
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Main Authors: Lysentko, I.M., Maslova, Yu.P., Pratsevytyi, M.V., Лысенко, И.М., Маслова, Ю.П., Працевитый, Н.В., Лисенко, І.М., Працьовитий, М.В.
Format: Article
Language:Ukrainian
English
Published: Інститут математики НАН України 2020
Online Access:https://trim.imath.kiev.ua/index.php/trim/article/view/395
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Journal Title:Transactions of Institute of Mathematics of NAS of Ukraine
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Transactions of Institute of Mathematics of NAS of Ukraine
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Summary:We consider an analytic system of encoding of numbers ($G_2$-representative) from an interval $[0;g_0]$ by means of the two-symbol alphabet $A\equiv\{0;1\}$ with two bases having different signs: $g_0\in(0;1)$ and $g_1=g_0-1$.The system is based on expansion of the numerical series. Functions with non-homogeneous local properties of structural and differential kind are studied. Inversor of digits of the $G_2$-representation of the numbers and shift operator for the $G_2$-representation are among them.Properties of these functions are found out being rather surprising: the inversor is not a monotonic function and the shift operator is a continuous function. This implies the fundamental difference between the present and previously studied representations.We compare properties of the $G_2$- and two-base $Q_2$-representations (both are positive) using the projector of digits of between them.