Given a cut s in an ordered structure M we can define a localization of Morley rank-Morley o-rank, replacing each formula in definition of Morley rank with the following partial types: the cut s extended with this formula. We prove in the paper that any ordered group of Morley o-rank 1 with boundedly many definable convex subgroups is weakly o-minimal and construct an example of an ordered group of Morley o-rank 1 and Morley o-degree at most 4.
机构:
Kazakh Acad Sci, Minist Sci, Informat & Control Problems Inst, Alma Ata 480021, KazakhstanKazakh Acad Sci, Minist Sci, Informat & Control Problems Inst, Alma Ata 480021, Kazakhstan
机构:
Kazakh Acad Sci, Minist Sci, Informat & Control Problems Inst, Alma Ata 480021, KazakhstanKazakh Acad Sci, Minist Sci, Informat & Control Problems Inst, Alma Ata 480021, Kazakhstan