Kim, Daejun; Lee, Jeongwon; Oh, Byeong-Kweon A sum of three nonzero triangular numbers. (English) Zbl 1482.11060 Int. J. Number Theory 17, No. 10, 2279-2300 (2021). Reviewer: Meinhard Peters (Münster) MSC: 11E12 11E20 11E25 PDFBibTeX XMLCite \textit{D. Kim} et al., Int. J. Number Theory 17, No. 10, 2279--2300 (2021; Zbl 1482.11060) Full Text: DOI
Ju, Jangwon; Oh, Byeong-Kweon Universal mixed sums of generalized 4- and 8-gonal numbers. (English) Zbl 1450.11031 Int. J. Number Theory 16, No. 3, 603-627 (2020). Reviewer: Detlev Hoffmann (Dortmund) MSC: 11E12 11D09 11E20 PDFBibTeX XMLCite \textit{J. Ju} and \textit{B.-K. Oh}, Int. J. Number Theory 16, No. 3, 603--627 (2020; Zbl 1450.11031) Full Text: DOI arXiv
Ju, Jangwon; Oh, Byeong-Kweon; Seo, Bangnam Ternary universal sums of generalized polygonal numbers. (English) Zbl 1456.11037 Int. J. Number Theory 15, No. 4, 655-675 (2019). Reviewer: Meinhard Peters (Münster) MSC: 11E12 11E20 PDFBibTeX XMLCite \textit{J. Ju} et al., Int. J. Number Theory 15, No. 4, 655--675 (2019; Zbl 1456.11037) Full Text: DOI arXiv
Ju, Jangwon; Kim, Kyoungmin; Oh, Byeong-Kweon Spinor representations of positive definite ternary quadratic forms. (English) Zbl 1420.11069 Int. J. Number Theory 14, No. 2, 581-594 (2018). MSC: 11E25 11E12 11E20 PDFBibTeX XMLCite \textit{J. Ju} et al., Int. J. Number Theory 14, No. 2, 581--594 (2018; Zbl 1420.11069) Full Text: DOI arXiv
Oh, Byeong-Kweon Representations of arithmetic progressions by positive definite quadratic forms. (English) Zbl 1237.11020 Int. J. Number Theory 7, No. 6, 1603-1614 (2011). Reviewer: Andrew G. Earnest (Carbondale) MSC: 11E12 11E20 PDFBibTeX XMLCite \textit{B.-K. Oh}, Int. J. Number Theory 7, No. 6, 1603--1614 (2011; Zbl 1237.11020) Full Text: DOI