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Vasil’eva, A. A. Estimates for norms of two-weighted summation operators on a tree under some restrictions on weights. (English) Zbl 1321.26055 Math. Nachr. 288, No. 10, 1179-1202 (2015). MSC: 26D15 PDFBibTeX XMLCite \textit{A. A. Vasil'eva}, Math. Nachr. 288, No. 10, 1179--1202 (2015; Zbl 1321.26055) Full Text: DOI arXiv