Combinations related to classes of finite and countably categorical structures and their theories

Abstract

We consider and characterize classes of finite and countably categorical structures and their theories preserved under $E$-operators and $P$-operators. We describe $e$-spectra and families of finite cardinalities for structures belonging to closures with respect to $E$-operators and $P$-operators.

References in corpus (2)

• On semilattices and lattices for families of theories
• Relative e-spectra and relative closures for families of theories