Campiti, Michele Riemann sequential approximation of continuous functions. (English) Zbl 0728.41035 Boll. Unione Mat. Ital., VII. Ser., B 4, No. 1, 143-154 (1990). Reviewer: R.M.Aron (Kent) MSC: 41A65 41A30 PDFBibTeX XMLCite \textit{M. Campiti}, Boll. Unione Mat. Ital., VII. Ser., B 4, No. 1, 143--154 (1990; Zbl 0728.41035)
Beer, Gerald Metric projections and the Fell topology. (English) Zbl 0762.54018 Boll. Unione Mat. Ital, VII. Ser., B 3, No. 4, 925-937 (1989). MSC: 54C60 41A65 54E52 54B20 PDFBibTeX XMLCite \textit{G. Beer}, Boll. Unione Mat. Ital., VII. Ser., B 3, No. 4, 925--937 (1989; Zbl 0762.54018)
Della Vecchia, Biancamaria On the preservation of Lipschitz constants for some linear operators. (English) Zbl 0692.41020 Boll. Unione Mat. Ital., VII. Ser., B 3, No. 1, 125-136 (1989). Reviewer: R.N.Siddiqi MSC: 41A36 41A10 PDFBibTeX XMLCite \textit{B. Della Vecchia}, Boll. Unione Mat. Ital., VII. Ser., B 3, No. 1, 125--136 (1989; Zbl 0692.41020)
Franchetti, C.; Roversi, S. The geometry of hypercircles in Banach spaces. (English) Zbl 0676.46010 Boll. Unione Mat. Ital., VII. Ser., B 2, No. 4, 795-816 (1988). Reviewer: A.J.Ellis MSC: 46B20 41A65 PDFBibTeX XMLCite \textit{C. Franchetti} and \textit{S. Roversi}, Boll. Unione Mat. Ital., VII. Ser., B 2, No. 4, 795--816 (1988; Zbl 0676.46010)
Benítez, Carlos; Fernández, Manuel Functional characterization of best and good approximation in normed product spaces. (English) Zbl 0653.41031 Boll. Unione Mat. Ital., VII. Ser., B 2, No. 2, 313-322 (1988). Reviewer: N.Nashed MSC: 41A65 41A50 PDFBibTeX XMLCite \textit{C. Benítez} and \textit{M. Fernández}, Boll. Unione Mat. Ital., VII. Ser., B 2, No. 2, 313--322 (1988; Zbl 0653.41031)
Altomare, Francesco Nets of positive operators in spaces of continuous affine functions. (English) Zbl 0618.46028 Boll. Unione Mat. Ital., VII. Ser., B. 1, 217-233 (1987). MSC: 46E15 41A65 41A36 47B60 PDFBibTeX XMLCite \textit{F. Altomare}, Boll. Unione Mat. Ital., VII. Ser., B 1, 217--233 (1987; Zbl 0618.46028)