On algebras of binary formulas for weakly circularly minimal theories of finite convexity rank

On algebras of binary formulas for weakly circularly minimal theories of finite convexity rank

Kulpeshov B. Sh., Sudoplatov S. V.
Siberian Electronic Mathematical Reports, 22, 1, pp. 635-649 (2025)

УДК 510.67 
DOI: 10.33048/semi.2025.22.041  
MSC 03C50, 03C64, 03C35, 05C65, 54A05


Abstract:

Algebras of binary isolating formulas are described for $\aleph_0$-categorical 1-transitive
non-primitive weakly circularly minimal theories of finite convexity rank with a trivial definable
closure having a monotonic-to-right function to the definable completion of a structure and
not having a non-trivial equivalence relation partitioning the universe of a structure into
finitely many convex classes.

Keywords: algebra of binary formulas, weak circular minimality, $\aleph_0$-categorical theory, circularly ordered structure, convexity rank.