Elementary reduction of matrices over rings with almost stable range 1
Bohdan ZabavskyDepartment of Algebra and Logic 
Andriy RomanivDepartment of Algebra, Pidstryhach 



November 27, 2018 at 15:05 in Lecture Room 377 
Abstract of talk
In the talk we investigate the elementary reduction of matrices over rings with almost stable range 1.
Classification of Symmetry Reductions for the Eikonal Equation
Vasyl’FedorchukInstitute of Mathematics, 
Volodymyr FedorchukDepartment of Algebra, 



November 6, 2018 at 15:05 in Lecture Room 377 
Abstract of talk
In the talk we present the results concerning the relationship between the structural properties of lowdimensional (dim L ≤ 3) nonconjugate subalgebras of the Lie algebra of the Poincare group P(1,4) and the properties of the reduced equations for the eikonal equation. To obtain those results, we have performed the classification of the invariants as well as of the ansatzes for the above mentioned subalgebras. We also present some classes of invariant solutions for the eikonal equation.
Reduced Triangular Form of Polynomial Matrices and Its Invariants
Bogdan ShavarovskiiDepartment of Algebra, Pidstryhach 



October 16, 2018 at 15:05 in Lecture Room 377 
Abstract of talk
In this report the semiscalar equivalence of polynomial matrices of threeorder is
investigated. In particular, the systems of invariants of reduced matrices have been found.
Session dedicated to the memory of professor Vasyl’ Ivanovych Andriychuk
Session of the Lviv Algebraic Seminar dedicated to the memory of professorVasyl’ Ivanovych Andriychuk 

September 18, 2018 at 15:00 in Lecture Room 377 
Program
Photo Gallery
Семінар присвячений 70літтю
від дня народження М. Я. Комарницького
On the least common multiple of matrices over
commutative principal ideal domains
Andriy RomanivDepartment of Algebra, Pidstryhach 



March 27, 2018 at 15:05 in Lecture Room 377 
Abstract of talk
In the talk it will be shown how to find Smith normal form and transforming matrices of the least common multiply of arbitrary pair of nonsingular matrices over a commutative principal ideal domain.
On Gao’s conjecture related with finite field high order elements
Roman Popovych Department of Specialized Computer Systems, 



December 5, 2017 at 15:05 in Lecture Room 377 
Abstract of talk
The talk will be devoted to the Gao’s conjecture connected with the construction of elements of provable high multiplicative order in general finite fields.