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- Rutgers, The State University of New JerseyUS20 papers
- California Institute of TechnologyUS17 papers
- Centre National de la Recherche ScientifiqueFR17 papers
- Tel Aviv UniversityIL17 papers
- University of ChicagoUS16 papers
- Bar-Ilan UniversityIL15 papers
- Weizmann Institute of ScienceIL15 papers
- University of WashingtonUS14 papers
- Technion – Israel Institute of TechnologyIL12 papers
- University of ArizonaUS11 papers
- Hungarian Academy of SciencesHU10 papers
- Physico-Technical InstituteRU10 papers
4 papers · 2 filters
Karp complexity and classes with the independence property
Michael C. Laskowski, Saharon Shelah
A class K of structures is controlled if for all cardinals lambda, the relation of L_{infty,lambda}-equivalence partitions K into a set of equivalence classes (as opposed to a prop…
The structure of Ext(A,Z) and GCH: possible co-Moore spaces
Paul C. Eklof, Saharon Shelah
We consider what Ext(A,Z) can be when A is torsion-free and Hom(A,Z)=0. We thereby give an answer to a question of Golasinski and Goncalves which asks for the divisible Abelian gro…
Banach spaces and groups - order properties and universal models
Saharon Shelah, Alex Usvyatsov
We deal with two natural examples of almost-elementary classes: the class of all Banach spaces (over R or C) and the class of all groups. We show both of these classes do not have…
Subsets of superstable structures are weakly benign
Bektur Baizhanov, John Baldwin, Saharon Shelah
Baizhanov and Baldwin introduced the notion of benign and weakly benign sets to investigate the preservation of stability by naming arbitrary subsets of a stable structure. They co…