Becerra Garrido, Jorge; Castillo, Jesús M. F. Finite, infinite and twisted ascent and descent. (Spanish) Zbl 07039404 Gac. R. Soc. Mat. Esp. 21, No. 3, 497-516 (2018). MSC: 47B33 Linear composition operators 47A13 Several-variable operator theory (spectral, Fredholm, etc.) PDFBibTeX XMLCite \textit{J. Becerra Garrido} and \textit{J. M. F. Castillo}, Gac. R. Soc. Mat. Esp. 21, No. 3, 497--516 (2018; Zbl 07039404)