Combinations related to classes of finite and countably categorical structures and their theories
Sergey Vladimirovich Sudoplatov · arXiv (Cornell University) · 2017
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.