机译:ON THE NOTIONS OF UPPER AND LOWER DENSITY
Department of Mathematics, Texas A & M University at Qatar, PO Box 23874 Doha, Qatar;
Department of Statistics, Università Luigi Bocconi, via Sarfatti 25, 20136 Milano, Italy;
analytic density; asymptotic (or natural) density; axiomatization; Banach (or uniform) density; Buck density; logarithmic density; Pólya density; upper and lower densities;