Laxmi Parida, Pier F. Palamara, et al.
BMC Bioinformatics
We show that (θ) implies that there is a first countable < θ- collectionwise Hausdorff space that is not weakly θ-collectionwise Hausdorff. We also show that in the model obtained by Levy collapsing a weakly compact (supercompact) cardinal to ω2, first countable collectionwise Hausdorff spaces are weakly collectionwise Hausdorff (weakly collectionwise Hausdorff). In the last section we show that assuming a certain θ-family of integer-valued functions exists and that in the model obtained by Levy collapsing a supercompact cardinal to ω these families do not exist. © 1994 American Mathematical Society.
Laxmi Parida, Pier F. Palamara, et al.
BMC Bioinformatics
Ronen Feldman, Martin Charles Golumbic
Ann. Math. Artif. Intell.
Jonathan Ashley, Brian Marcus, et al.
Ergodic Theory and Dynamical Systems
David W. Jacobs, Daphna Weinshall, et al.
IEEE Transactions on Pattern Analysis and Machine Intelligence