The number of k-sums of abelian groups of order k
Hong Bing Yu (2004)
Acta Arithmetica
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Hong Bing Yu (2004)
Acta Arithmetica
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Simon Griffiths (2009)
Acta Arithmetica
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L. Rubel (1961)
Acta Arithmetica
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Zhi-Wei Sun (2001)
Acta Arithmetica
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Vsevolod F. Lev (2008)
Acta Arithmetica
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Alfred Moessner, George Xeroudakes (1954)
Publications de l'Institut Mathématique
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Tingting Wang (2012)
Acta Arithmetica
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Zhefeng Xu, Wenpeng Zhang (2008)
Acta Arithmetica
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Sun, Zhiwei (2003)
Electronic Research Announcements of the American Mathematical Society [electronic only]
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Huaning Liu, Wenpeng Zhang (2007)
Acta Arithmetica
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L. Carlitz (1980)
Acta Arithmetica
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Koichi Kawada, Trevor D. Wooley (2002)
Acta Arithmetica
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Emmanuel Tsukerman (2015)
Acta Arithmetica
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Using a generalization due to Lerch [Bull. Int. Acad. François Joseph 3 (1896)] of a classical lemma of Zolotarev, employed in Zolotarev's proof of the law of quadratic reciprocity, we determine necessary and sufficient conditions for the difference of two Dedekind sums to be in 8ℤ. These yield new necessary conditions for equality of two Dedekind sums. In addition, we resolve a conjecture of Girstmair [arXiv:1501.00655].
Kh. Hessami Pilehrood, T. Hessami Pilehrood (2007)
Acta Arithmetica
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