М. V. Schwidefsky

Часть публикаций из профиля, по году от новых к старым. Это не полный список последних работ автора; работы без года — в конце.

• Decision Problems for Quasivarieties2026 · аннотациясвернуть

  We prove that, under certain circumstances, a quasivariety contains continuum many Q -universal subquasivarieties for which the finite membership problem and the quasiequational theory are undecidable.

• An effective version of the Stone duality2026
• To the Theory of $$\mathsf{H}$$-Sober Spaces: II. Approximation Spaces2025
• Duality for Bi-Algebraic Lattices Belonging to the Variety of (0, 1)-Lattices Generated by the Pentagon2024
• The Quasivariety $ {\mathbf{S}}{\mathbf{P}}(L_{6}) $. II: A Duality Result2024
• Structure of Quasivariety Lattices. IV. Nonstandard Quasivarieties2021 · аннотациясвернуть

  In the previous articles of this series, some sufficient conditions were found for a quasivariety to possess continuum many subquasivarieties with certain properties. Here we prove that these conditions also imply the…

• Structure of Quasivariety Lattices. I. Independent Axiomatizability2019
• Structure of Quasivariety Lattices. II. Undecidable Problems2019