Santi Spadaro

P-spaces and the Volterra property

We study the relationship between generalizations of

ON TWO TOPOLOGICAL CARDINAL INVARIANTS OF AN ORDER-THEORETIC FLAVOUR

P

Noetherian type in topological products

-spaces and Volterra (weakly Volterra) spaces, that is, spaces where every two dense

INFINITE GAMES AND CARDINAL PROPERTIES OF TOPOLOGICAL SPACES

G_\delta

SHORT PROOF OF A THEOREM OF JUH ´ ASZ

have dense (non-empty) intersection. In particular, we prove that every dense and every open, but not every closed subspace of an almost

COMPARING WEAK VERSIONS OF SEPARABILITY

P

Cardinal Invariants for the

-space is Volterra and that there are Tychonoff non-weakly Volterra weak

G_\delta

P

topology

-spaces. These results should be compared with the fact that every

THE WHYBURN PROPERTY AND THE CARDINALITY OF TOPOLOGICAL SPACES

P