Ren, Lishun; Chai, Xinkuan Further discussion on the asymptotic property of the functional differential “mean value point”. (Chinese. English summary) Zbl 1035.46500 J. Henan Norm. Univ., Nat. Sci. 31, No. 1, 28-31 (2003). MSC: 46B99 PDF BibTeX XML Cite \textit{L. Ren} and \textit{X. Chai}, J. Henan Norm. Univ., Nat. Sci. 31, No. 1, 28--31 (2003; Zbl 1035.46500)
Ren, Lishun Asymptotic behavior of mean-value points of differentials of functions. (Chinese. English summary) Zbl 1037.26005 J. Northwest Norm. Univ., Nat. Sci. 38, No. 2, 14-16, 88 (2002). MSC: 26A24 26B05 46G05 PDF BibTeX XML Cite \textit{L. Ren}, J. Northwest Norm. Univ., Nat. Sci. 38, No. 2, 14--16, 88 (2002; Zbl 1037.26005)
Ren, Lishun Newton’s method domain of convergence theorem in infinite-dimensional spaces. (English) Zbl 1007.46039 Chin. Q. J. Math. 16, No. 2, 17-21 (2001). MSC: 46G05 47J05 PDF BibTeX XML Cite \textit{L. Ren}, Chin. Q. J. Math. 16, No. 2, 17--21 (2001; Zbl 1007.46039)