Abstract
In this paper, we continue the construction done in [3], so that under model-4-CA or 4-CA, given a bounded quadrangle C induced from a group configuration, we build a canonical hyperdefinable homogeneous space equivalent to C. When C is principal, we can choose the homogeneous space principal as well.
Citation
Byunghan Kim. "Recovering the hyperdefinable group action in the group configuration theorem." J. Symbolic Logic 75 (1) 12 - 24, March 2010. https://doi.org/10.2178/jsl/1264433907
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