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On sums of distinct powers of 3 and 4

Maximilian F. Hasler and Giuseppe Melfi

Vol. 13 (2024), No. 2, 141–148
Abstract

In 1996 Erdős conjectured that the set Σ(Pow ({3,4}),1) defined as the sums of distinct powers of 3 and distinct powers of 4 has positive asymptotic density. We investigate some structure properties of this set. We also prove some asymptotic estimates for its counting function P{3,4}(x). In particular we prove that P{3,4}(x) x0.97777 , improving an old estimate of Melfi.

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Keywords
sum of powers, Erdős problems, additive problems
Mathematical Subject Classification
Primary: 11A67
Secondary: 11B37
Milestones
Received: 21 January 2024
Revised: 31 May 2024
Accepted: 17 June 2024
Published: 1 July 2024
Authors
Maximilian F. Hasler
Université des Antilles
UFR STE & MEMIAD
Schoelcher
Martinique
Giuseppe Melfi
Institute of Management of Information
University of Neuchâtel
Neuchâtel
Switzerland
University of Applied Sciences of Western Switzerland, HEG-Arc
Neuchâtel
Switzerland