1.7k citations
- Rutgers, The State University of New JerseyUS16 papers
- University of WashingtonUS14 papers
- California Institute of TechnologyUS13 papers
- Tel Aviv UniversityIL13 papers
- Weizmann Institute of ScienceIL13 papers
- University of ChicagoUS12 papers
- Bar-Ilan UniversityIL11 papers
- Centre National de la Recherche ScientifiqueFR11 papers
- Hungarian Academy of SciencesHU9 papers
- Hebrew CollegeUS7 papers
- Universidad de SalamancaES7 papers
- University of ArizonaUS7 papers
4 papers · 2 filters
Finite subgraphs of uncountably chromatic graphs
Péter Komjáth, Saharon Shelah
It is consistent that for every monotonically increasing function f:omega->omega there is a graph with size and chromatic number aleph_1 in which every n-chromatic subgraph has at…
Generic left-separated spaces and calibers
Istvan Juhász, Saharon Shelah
We use a natural forcing to construct a left-separated topology on an arbitrary cardinal kappa. The resulting left-separated space X_kappa is also 0-dimensional T_2, hereditarily L…
A partition theorem for scattered order types
Peter Komjath, Saharon Shelah
If phi is a scattered order type, mu a cardinal, then there exists a scattered order type psi such that psi->[phi]^1_{mu,aleph_0} holds.
Some notes concerning the homogeneity of Boolean algebras and Boolean spaces
Stefan Geschke, Saharon Shelah
We consider homogeneity properties of Boolean algebras that have nonprincipal ultrafilters which are countably generated.It is shown that a Boolean algebra B is homogeneous if it i…