Andrii Dmytryshyn

Research fellow (assistant professor) at Department of Computing Science

andrii.dmytryshyn@umu.se

+46 90 786 61 24

Plan 4, MIT-huset, D448 Umeå universitet, 901 87 Umeå

Latest publications

2019

Miniversal deformations of pairs of symmetric matrices under congruence

Linear Algebra and its Applications, Elsevier 2019, Vol. 568 : 84-105

Dmytryshyn, Andrii

2018

Generic skew-symmetric matrix polynomials with fixed rank and fixed odd grade

Linear Algebra and its Applications, Elsevier 2018, Vol. 536 : 1-18

Dmytryshyn, Andrii; Dopico, Froilán

2017

Canonical structure transitions of system pencils

SIAM Journal on Matrix Analysis and Applications, Society for Industrial and Applied Mathematics 2017, Vol. 38, (4) : 1249-1267

Dmytryshyn, Andrii; Johansson, Stefan; Kågström, Bo

2017

Generalization of Roth's solvability criteria to systems of matrix equations

Linear Algebra and its Applications, Vol. 527 : 294-302

Dmytryshyn, Andrii; Futorny, Vyacheslav; Klymchuk, Tetiana; et al.

2017

Generic complete eigenstructures for sets of matrix polynomials with bounded rank and degree

Linear Algebra and its Applications, Elsevier 2017, Vol. 535 : 213-230

Dmytryshyn, Andrii; Dopico, Froilán M.

2017

Structure preserving stratification of skew-symmetric matrix polynomials

Linear Algebra and its Applications, Elsevier 2017, Vol. 532 : 266-286

Dmytryshyn, Andrii

2016

Classification of pairs of linear mappings between two vector spaces and between their quotient space and subspace

Linear Algebra and its Applications, Vol. 509 : 228-246

Dmytryshyn, Andrii; Fonseca, Carlos; Rybalkina, Tetiana

2016

Generic matrix polynomials with fixed rank and fixed degree

Report / UMINF, 16/19

Dmytryshyn, Andrii; Dopico, Froilán M.

2016

Miniversal deformations of pairs of skew-symmetric matrices under congruence

Linear Algebra and its Applications, Vol. 506 : 506-534

Dmytryshyn, Andrii

2015

Canonical structure transitions of system pencils

Report / UMINF, 15.15

Dmytryshyn, Andrii; Johansson, Stefan; Kågström, Bo

2015

Change of the congruence canonical form of 2-by-2 and 3-by-3 matrices under perturbations and bundles of matrices under congruence

Linear Algebra and its Applications, Vol. 469 : 305-334

Dmytryshyn, Andrii; Futorny, Vyacheslav; Kågström, Bo; et al.

2015

Coupled Sylvester-type Matrix Equations and Block Diagonalization

SIAM Journal on Matrix Analysis and Applications, Vol. 36, (2) : 580-593

Dmytryshyn, Andrii; Kågstrom, Bo

2015

Geometry of spaces for matrix polynomial Fiedler linearizations

Report / UMINF, 15.17

Dmytryshyn, Andrii; Johansson, Stefan; Kågström, Bo; et al.

2015

Structure preserving stratification of skew-symmetric matrix polynomials

Report / UMINF, 15.16

Dmytryshyn, Andrii

2015

Tools for Structured Matrix Computations: Stratifications and Coupled Sylvester Equations

Report / UMINF, 15.18

Dmytryshyn, Andrii

2014

Miniversal deformations of matrices under *congruence and reducing transformations

Linear Algebra and its Applications, Elsevier 2014, Vol. 446, (April) : 388-420

Dmytryshyn, Andrii; Futorny, Vyacheslav; Sergeichuk, Vladimir

2014

Orbit closure hierarchies of skew-symmetric matrix pencils

SIAM Journal on Matrix Analysis and Applications, Vol. 35, (4) : 1429-1443

Dmytryshyn, Andrii; Kågstrom, Bo

2014

Orbit closure hierarchies of skew-symmetric matrix pencils

UMINF, 14.02

Dmytryshyn, Andrii; Kågström, Bo

2014

Skew-symmetric matrix pencils: stratification theory and tools

UMINF, 14.05

Dmytryshyn, Andrii

2014

Symmetric matrix pencils: codimension counts and the solution of a pair of matrix equations

The Electronic Journal of Linear Algebra, Vol. 27 : 1-18

Dmytryshyn, Andrii; Kågström, Bo; Sergeichuk, Vladimir V.

2013

Codimension computations of congruence orbits of matrices, symmetric and skew-symmetric matrix pencils using Matlab

Report / UMINF, 13.18

Dmytryshyn, Andrii; Johansson, Stefan; Kågström, Bo

2013

Skew-symmetric matrix pencils: codimension counts and the solution of a pair of matrix equations

Linear Algebra and its Applications, Elsevier 2013, Vol. 438, (8) : 3375-3396

Dmytryshyn, Andrii; Kågström, Bo; Sergeichuk, Vladimir V.

2012

Miniversal deformations of matrices of bilinear forms

Linear Algebra and its Applications, Elsevier 2012, Vol. 436, (7) : 2670-2700

Dmytryshyn, Andrii; Futorny, Vyacheslav; Sergeichuk, Vladimir

2009

Problems of classifying associative or Lie algebras over a field of characteristic not 2 and finite metabelian groups are wild

The Electronic Journal of Linear Algebra, Vol. 18 : 516-529

Belitskii, Genrich; Dmytryshyn, Andrii; Lipyanski, Ruvim; et al.

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Research projects

1 January 1998

StratiGraph and MCS Toolbox

Research subject: Computing science

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Andrii Dmytryshyn

Latest publications

Research projects