Sommaire

Foreword
Embedding topological semigroups into the hyperspaces over topological groups
p. 3-18
Mad families and ultrafilters
p. 19-35
Non-normality and relative normality of Niemytzki plane
p. 37-41
A note on $\Cal J$-ultrafilters and $P$-points
p. 43-48
$c$-Luzin sets, nonatomic $\sigma$-fields and $\sigma$-independent sets
p. 49-53
Theorem on signatures
p. 55-67
Constructing subsets of a given packing index in Abelian groups
p. 69-80
Fourier series and the Colombeau algebra on the unit circle
p. 81-93