Tong, Miao; He, Kun; Zhu, Zhijuan Foreground extraction based on multiscale smoothing. (Chinese. English summary) Zbl 1463.68078 J. Sichuan Univ., Nat. Sci. Ed. 57, No. 2, 271-276 (2020). MSC: 68T10 68U10 PDFBibTeX XMLCite \textit{M. Tong} et al., J. Sichuan Univ., Nat. Sci. Ed. 57, No. 2, 271--276 (2020; Zbl 1463.68078) Full Text: DOI
Zhang, Dandan; Ding, Ling Existence of radial sign-changing solution for a fractional autonomous Kirchhoff equation. (Chinese. English summary) Zbl 1463.35508 J. Sichuan Univ., Nat. Sci. Ed. 57, No. 2, 243-246 (2020). MSC: 35R11 PDFBibTeX XMLCite \textit{D. Zhang} and \textit{L. Ding}, J. Sichuan Univ., Nat. Sci. Ed. 57, No. 2, 243--246 (2020; Zbl 1463.35508) Full Text: DOI
Zhao, Zhongzi; Ma, Ruyun Existence of positive solutions for a class of fourth-order ordinary differential equations with nonlinear boundary value. (Chinese. English summary) Zbl 1463.34114 J. Sichuan Univ., Nat. Sci. Ed. 57, No. 2, 236-242 (2020). MSC: 34B18 34B09 34C23 PDFBibTeX XMLCite \textit{Z. Zhao} and \textit{R. Ma}, J. Sichuan Univ., Nat. Sci. Ed. 57, No. 2, 236--242 (2020; Zbl 1463.34114) Full Text: DOI
Su, Xiaoxiao Existence of infinite positive solutions and oscillation of connected component of positive solutions for a class of periodic boundary value problems of first order difference equation. (Chinese. English summary) Zbl 1474.39039 J. Sichuan Univ., Nat. Sci. Ed. 57, No. 2, 231-235 (2020). MSC: 39A27 39A21 39A28 PDFBibTeX XMLCite \textit{X. Su}, J. Sichuan Univ., Nat. Sci. Ed. 57, No. 2, 231--235 (2020; Zbl 1474.39039) Full Text: DOI
Jian, Shuman; Wang, Xiaofeng; Xia, Jin Positive Toeplitz operators between doubling Fock spaces. (Chinese. English summary) Zbl 1463.47092 J. Sichuan Univ., Nat. Sci. Ed. 57, No. 2, 225-230 (2020). MSC: 47B35 30H20 PDFBibTeX XMLCite \textit{S. Jian} et al., J. Sichuan Univ., Nat. Sci. Ed. 57, No. 2, 225--230 (2020; Zbl 1463.47092) Full Text: DOI
Luo, Yang; Li, Hongxu Asymptotical almost periodicity of solutions of a class of fuzzy cellular neural networks with varying time-delays. (English) Zbl 1463.34296 J. Sichuan Univ., Nat. Sci. Ed. 57, No. 2, 218-224 (2020). MSC: 34K36 34K14 34K25 34K20 92B20 PDFBibTeX XMLCite \textit{Y. Luo} and \textit{H. Li}, J. Sichuan Univ., Nat. Sci. Ed. 57, No. 2, 218--224 (2020; Zbl 1463.34296) Full Text: DOI
Xie, Xiaolin; Kou, Hui Lower power structures of directed spaces. (Chinese. English summary) Zbl 1463.54013 J. Sichuan Univ., Nat. Sci. Ed. 57, No. 2, 211-217 (2020). MSC: 54A05 08B20 68Q55 PDFBibTeX XMLCite \textit{X. Xie} and \textit{H. Kou}, J. Sichuan Univ., Nat. Sci. Ed. 57, No. 2, 211--217 (2020; Zbl 1463.54013)
Chen, Jinxin Completeness and cocompleteness of categories of Yoneda complete metric space. (English) Zbl 1463.54081 J. Sichuan Univ., Nat. Sci. Ed. 57, No. 2, 205-210 (2020). MSC: 54E50 18A35 18F60 PDFBibTeX XMLCite \textit{J. Chen}, J. Sichuan Univ., Nat. Sci. Ed. 57, No. 2, 205--210 (2020; Zbl 1463.54081) Full Text: DOI