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Haukkanen, Pentti; Tóth, László An analogue of Ramanujan’s sum with respect to regular integers (mod \(r\)). (English) Zbl 1245.11012 Ramanujan J. 27, No. 1, 71-88 (2012). Reviewer: Jürgen Spilker (Freiburg i. Br.) MSC: 11A25 PDF BibTeX XML Cite \textit{P. Haukkanen} and \textit{L. Tóth}, Ramanujan J. 27, No. 1, 71--88 (2012; Zbl 1245.11012) Full Text: DOI arXiv OpenURL
Hong, Shaofang; Sun, Qi Determinants of matrices associated with incidence functions on posets. (English) Zbl 1080.11023 Czech. Math. J. 54, No. 2, 431-443 (2004). MSC: 11C20 15B57 PDF BibTeX XML Cite \textit{S. Hong} and \textit{Q. Sun}, Czech. Math. J. 54, No. 2, 431--443 (2004; Zbl 1080.11023) Full Text: DOI EuDML OpenURL