Chen, Jie; Zhang, Yi Integrating factors and conservation laws for a weakly nonholonomic system. (Chinese. English summary) Zbl 1449.70019 J. Suzhou Univ. Sci. Technol., Nat. Sci. 36, No. 2, 13-19 (2019). MSC: 70H33 70F25 PDFBibTeX XMLCite \textit{J. Chen} and \textit{Y. Zhang}, J. Suzhou Univ. Sci. Technol., Nat. Sci. 36, No. 2, 13--19 (2019; Zbl 1449.70019) Full Text: DOI
Cai, Qionghui; Zhu, Jianqing Application of integrating factor method to Birkhoff system based on El-Nabulsi fractional integral model extended by periodic law. (Chinese. English summary) Zbl 1438.70013 J. Suzhou Univ. Sci. Technol., Nat. Sci. 36, No. 1, 11-15 (2019). MSC: 70H06 70H33 PDFBibTeX XMLCite \textit{Q. Cai} and \textit{J. Zhu}, J. Suzhou Univ. Sci. Technol., Nat. Sci. 36, No. 1, 11--15 (2019; Zbl 1438.70013) Full Text: DOI
Shu, Fangping; Zhang, Yi; Zhu, Jianqing Integrating factors and conserved quantities for Lagrange systems based on fractional order model. (Chinese. English summary) Zbl 1340.70016 J. Suzhou Univ. Sci. Technol., Nat. Sci. 32, No. 2, 1-5 (2015). MSC: 70H33 34A08 PDFBibTeX XMLCite \textit{F. Shu} et al., J. Suzhou Univ. Sci. Technol., Nat. Sci. 32, No. 2, 1--5 (2015; Zbl 1340.70016)