Liu, Peng; Liu, Shibo On the surjectivity of smooth maps into Euclidean spaces and the fundamental theorem of algebra. (English) Zbl 1402.30006 Am. Math. Mon. 125, No. 10, 941-943 (2018). MSC: 30C15 58C25 57R70 PDF BibTeX XML Cite \textit{P. Liu} and \textit{S. Liu}, Am. Math. Mon. 125, No. 10, 941--943 (2018; Zbl 1402.30006) Full Text: DOI
Liu, Shibo On the regularity of operators near a regular operator. (English) Zbl 1204.47004 Am. Math. Mon. 117, No. 10, 927-928 (2010). MSC: 47A05 PDF BibTeX XML Cite \textit{S. Liu}, Am. Math. Mon. 117, No. 10, 927--928 (2010; Zbl 1204.47004) Full Text: DOI