Archive Fall 2018 Elementary reduction of matrices over rings with almost stable range 1 Classification of Symmetry Reductions for the Eikonal Equation Reduced Triangular Form of Polynomial Matrices and Its Invariants Session dedicated to the memory of professor Vasyl’ Ivanovych Andriychuk Spring 2018 Семінар присвячений 70-літтю від дня народження М. Я. Комарницького On the least common multiple of matrices over commutative principal ideal domains Fall 2017 On Gao’s conjecture related with finite field high order elements Semigroups and S-polygons with annihilation conditions Semiscalar equivalence of third order polynomial matrices with only one characteristic root Matrix linear equations in two variables over rings Spring 2017 Matrix reduction over Bezout rings Matrix value on system of matrix diagonal elements roots and its properties On the semigroup ID∞ On classification of low-dimensional Lie algebras Commutative Bezout domains whose non-trivial finite homomorphic images are semipotent rings Fall 2016 Two-sided submodules and duo-modules On semiscalar equivalence of lower order polynomial matrices Semiring analogue of dmp-ring Semiscalar equivalence of polynomial matrices and matrix equations Dyadic range of ring