Łukasik, Radosław A functional equation with biadditive functions. (English) Zbl 1501.39012 Ann. Math. Sil. 36, No. 2, 193-205 (2022). Reviewer: Maryam Amyari (Mashhad) MSC: 39B52 20M15 20K25 20K30 PDFBibTeX XMLCite \textit{R. Łukasik}, Ann. Math. Sil. 36, No. 2, 193--205 (2022; Zbl 1501.39012) Full Text: DOI
Łukasik, Radosław; Wójcik, Paweł Functions preserving the biadditivity. (English) Zbl 1442.39032 Result. Math. 75, No. 3, Paper No. 82, 17 p. (2020). Reviewer: Maryam Amyari (Mashhad) MSC: 39B55 39B52 20M15 20K25 20K30 PDFBibTeX XMLCite \textit{R. Łukasik} and \textit{P. Wójcik}, Result. Math. 75, No. 3, Paper No. 82, 17 p. (2020; Zbl 1442.39032) Full Text: DOI
Li, Zhu; Zhang, Yujuan An integrable system and its integrable coupling. (English) Zbl 1225.39012 J. Xinyang Norm. Univ., Nat. Sci. 22, No. 4, 493-496 (2009). MSC: 39A12 37J05 PDFBibTeX XMLCite \textit{Z. Li} and \textit{Y. Zhang}, J. Xinyang Norm. Univ., Nat. Sci. 22, No. 4, 493--496 (2009; Zbl 1225.39012) Full Text: DOI
Borelli Forti, C. Solutions of an alternative functional equation on Abelian groups. (Italian. English summary) Zbl 0756.39015 Rend. Semin. Mat., Torino 48, No. 1, 45-56 (1990). Reviewer: J.Aczél (Waterloo / Ontario) MSC: 39B52 20K30 PDFBibTeX XMLCite \textit{C. Borelli Forti}, Rend. Semin. Mat., Torino 48, No. 1, 45--56 (1990; Zbl 0756.39015)
Schulz, Wolfgang Ein gruppentheoretisches Kriterium für die Loesbarkeit der Funktionalgleichung f(x+y)=F(f(x),f(y)). (German) Zbl 0487.39003 Beitr. Algebra Geom. 10, 141-143 (1980). MSC: 39B99 20K10 20K20 20K25 20K30 PDFBibTeX XMLCite \textit{W. Schulz}, Beitr. Algebra Geom. 10, 141--143 (1980; Zbl 0487.39003) Full Text: EuDML