Li, Cuixia; Chen, Yuanyuan The financial measurement of VaR under the GARCH model based on empirical distribution. (Chinese. English summary) Zbl 1488.91164 Acta Sci. Nat. Univ. Sunyatseni 60, No. 4, 177-182 (2021). MSC: 91G70 62M10 PDF BibTeX XML Cite \textit{C. Li} and \textit{Y. Chen}, Acta Sci. Nat. Univ. Sunyatseni 60, No. 4, 177--182 (2021; Zbl 1488.91164) Full Text: DOI OpenURL
Zhang, Huan; Liu, Lihan The decomposition method for an interior inverse scattering problem with a Neumann boundary condition. (Chinese. English summary) Zbl 1488.74092 Acta Sci. Nat. Univ. Sunyatseni 60, No. 4, 170-176 (2021). MSC: 74J20 74J25 PDF BibTeX XML Cite \textit{H. Zhang} and \textit{L. Liu}, Acta Sci. Nat. Univ. Sunyatseni 60, No. 4, 170--176 (2021; Zbl 1488.74092) Full Text: DOI OpenURL
Li, Dongyan; Li, Li Singularity and decay estimate of solutions of a system of semi-linear degenerate elliptic equations. (Chinese. English summary) Zbl 1488.35234 Acta Sci. Nat. Univ. Sunyatseni 60, No. 4, 164-169 (2021). MSC: 35J61 35J70 35B45 PDF BibTeX XML Cite \textit{D. Li} and \textit{L. Li}, Acta Sci. Nat. Univ. Sunyatseni 60, No. 4, 164--169 (2021; Zbl 1488.35234) Full Text: DOI OpenURL
Piao, Yongjie Theorems on the unique common fixed point for four non-continuous self-mappings on non-complete \(b\)-metric spaces. (Chinese. English summary) Zbl 1478.54096 Acta Sci. Nat. Univ. Sunyatseni 60, No. 4, 146-153 (2021). MSC: 54H25 54E40 PDF BibTeX XML Cite \textit{Y. Piao}, Acta Sci. Nat. Univ. Sunyatseni 60, No. 4, 146--153 (2021; Zbl 1478.54096) Full Text: DOI OpenURL