Ju, Jangwon; Kim, Daejun The pentagonal theorem of sixty-three and generalizations of Cauchy’s lemma. (English) Zbl 1527.11030 Forum Math. 35, No. 6, 1685-1706 (2023). Reviewer: Meinhard Peters (Münster) MSC: 11E12 11E25 11E20 PDFBibTeX XMLCite \textit{J. Ju} and \textit{D. Kim}, Forum Math. 35, No. 6, 1685--1706 (2023; Zbl 1527.11030) Full Text: DOI arXiv
Kim, Daejun Weighted sums of generalized polygonal numbers with coefficients \(1\) or \(2\). (English) Zbl 1491.11037 Acta Arith. 202, No. 3, 227-240 (2022). Reviewer: Meinhard Peters (Münster) MSC: 11E12 11E25 11E08 PDFBibTeX XMLCite \textit{D. Kim}, Acta Arith. 202, No. 3, 227--240 (2022; Zbl 1491.11037) Full Text: DOI arXiv
Kim, Daejun On a quadratic Waring’s problem with congruence conditions. (English) Zbl 1448.11077 Acta Arith. 194, No. 1, 73-97 (2020). Reviewer: Guram Gogishvili (Tbilisi) MSC: 11E12 11E25 11P05 PDFBibTeX XMLCite \textit{D. Kim}, Acta Arith. 194, No. 1, 73--97 (2020; Zbl 1448.11077) Full Text: DOI arXiv