[EN] The recovery of the “mastio” and the surrounding courtyard of the new fortress of Volterra (1472-1474)
has as its objective the opening to the public of this fortified work, after 542 years from its construction,
with ...
Cao, Jiling; Greenwood, Sina(Universitat Politècnica de València, 2006-10-01)
[EN] In this paper, we consider the ideal Iσ generated by all σ-nowhere dense sets in a topological space. Properties of this ideal and its relations with the Volterra property are explored. We show that Iσ is compatible ...