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Floor, ceiling and the space between Cover

Abstract

Motivated by a question on the ranges of the commutators of dilated floor functions in [10], together with a related problem in [3], we investigate the precise ranges of certain generalized polynomials dependent on a real parameter. Our analysis requires non-trivial tools, including Kronecker’s approximation theorem. The results highlight sharp distinctions between irrational parameters and sub-unitary and supra-unitary rational parameters. We also propose several conjectures for the irrational and supra-unitary rational cases, supported by extensive computations in Wolfram Mathematica.

DOI: https://doi.org/10.2478/awutm-2025-0010 | Journal eISSN: 1841-3307 | Journal ISSN: 1841-3293
Language: English
Page range: 131 - 156
Submitted on: Aug 21, 2025
Accepted on: Aug 25, 2025
Published on: Sep 4, 2025
Published by: West University of Timisoara
In partnership with: Paradigm Publishing Services
Publication frequency: Volume open

© 2025 Árpád Bényi, Branko Ćurgus, published by West University of Timisoara
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.