paper

CM-trivial structures without the canonical base property

arXiv:2106.14468 · doi:10.2140/mt.2022.1.31

Abstract

Based on Hrushovski, Palac{í}n and Pillay's example [6], we produce a new structure without the canonical base property, which is interpretable in Baudisch's group. Said structure is, in particular, CM-trivial, and thus at the lowest possible level of the ample hierarchy.