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[unknown]

В.И. Зильбер (1974)

Algebra i Logika

[unknown]

Roman Kossak (1984)

Fundamenta Mathematicae

Varieties with polynomially many models, I

Paweł M. Idziak, Ralph McKenzie (2001)

Fundamenta Mathematicae

A characterization of locally finite congruence modular varieties with the number of at most k-generated models being bounded from above by a polynomial in k is given. These are exactly the varieties polynomially equivalent to the varieties of unitary modules over a finite ring of finite representation type.

Weak generic types and coverings of groups I

Ludomir Newelski, Marcin Petrykowski (2006)

Fundamenta Mathematicae

We introduce the notion of a weak generic type in a group. We improve our earlier results on countable coverings of groups and types.

Weakly maximal decidable structures

Alexis Bès, Patrick Cégielski (2008)

RAIRO - Theoretical Informatics and Applications

We prove that there exists a structure M whose monadic second order theory is decidable, and such that the first-order theory of every expansion of M by a constant is undecidable. 


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