Nguyen Xuan Tho On a problem of Richard Guy. (English) Zbl 1492.11071 Bull. Aust. Math. Soc. 105, No. 1, 12-18 (2022). Reviewer: Dimitros Poulakis (Thessaloniki) MSC: 11D25 11D88 PDFBibTeX XMLCite \textit{Nguyen Xuan Tho}, Bull. Aust. Math. Soc. 105, No. 1, 12--18 (2022; Zbl 1492.11071) Full Text: DOI Backlinks: MO
Bremner, Andrew; Nguyen Xuan Tho The equation \((w+x+y+z)(1/w+1/x+1/y+1/z) = n\). (English) Zbl 1428.11057 Int. J. Number Theory 14, No. 5, 1229-1246 (2018). MSC: 11D25 11G05 11D85 14G05 PDFBibTeX XMLCite \textit{A. Bremner} and \textit{Nguyen Xuan Tho}, Int. J. Number Theory 14, No. 5, 1229--1246 (2018; Zbl 1428.11057) Full Text: DOI Backlinks: MO