Geodesic

Volume 229 (2015) no. 3

Sommaire

Hausdorff gaps and towers in $\mathcal {P}(\omega )/ {\rm Fin}$
p. 197-229
$\Delta _1$-Definability of the non-stationary ideal at successor cardinals
p. 231-254
Quotients of index two and general quotients in a space of orderings
p. 255-275
$P$-sets and minimal right ideals in $\mathbb {N}^{*}$
p. 277-293