Matrix Diophantine equations over quadratic rings and their solutions

The method for solving the matrix Diophantine equations over quadratic rings is developed. On the basic of the standard form of matrices over quadratic rings with respect to $(z,k)$-equivalence previously established by the authors, the matrix Diophantine equation is reduced to equivalent matrix equ...

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Main Authors: N.B. Ladzoryshyn, V.M. Petrychkovych, H.V. Zelisko
Format: Article
Language:English
Published: Vasyl Stefanyk Precarpathian National University 2020-12-01
Series:Karpatsʹkì Matematičnì Publìkacìï
Subjects:
Online Access:https://journals.pnu.edu.ua/index.php/cmp/article/view/4069
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author N.B. Ladzoryshyn
V.M. Petrychkovych
H.V. Zelisko
author_facet N.B. Ladzoryshyn
V.M. Petrychkovych
H.V. Zelisko
author_sort N.B. Ladzoryshyn
collection DOAJ
description The method for solving the matrix Diophantine equations over quadratic rings is developed. On the basic of the standard form of matrices over quadratic rings with respect to $(z,k)$-equivalence previously established by the authors, the matrix Diophantine equation is reduced to equivalent matrix equation of same type with triangle coefficients. Solving this matrix equation is reduced to solving a system of linear equations that contains linear Diophantine equations with two variables, their solution methods are well-known. The structure of solutions of matrix equations is also investigated. In particular, solutions with bounded Euclidean norms are established. It is shown that there exists a finite number of such solutions of matrix equations over Euclidean imaginary quadratic rings. An effective method of constructing of such solutions is suggested.
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spelling doaj.art-54ad7483991e4f4b8f8de9d23f37af632024-04-16T07:04:01ZengVasyl Stefanyk Precarpathian National UniversityKarpatsʹkì Matematičnì Publìkacìï2075-98272313-02102020-12-0112236837510.15330/cmp.12.2.368-3753553Matrix Diophantine equations over quadratic rings and their solutionsN.B. Ladzoryshyn0V.M. Petrychkovych1H.V. Zelisko2Institute for Applied Problems of Mechanics and Mathematics, 3b Naukova str., 79060, Lviv, UkrainePidstryhach Institute for Applied Problems of Mechanics and Mathematics, 3b Naukova str., 79060, Lviv, UkraineIvan Franko Lviv National University, 1 Universytetska str., 79000, Lviv, UkraineThe method for solving the matrix Diophantine equations over quadratic rings is developed. On the basic of the standard form of matrices over quadratic rings with respect to $(z,k)$-equivalence previously established by the authors, the matrix Diophantine equation is reduced to equivalent matrix equation of same type with triangle coefficients. Solving this matrix equation is reduced to solving a system of linear equations that contains linear Diophantine equations with two variables, their solution methods are well-known. The structure of solutions of matrix equations is also investigated. In particular, solutions with bounded Euclidean norms are established. It is shown that there exists a finite number of such solutions of matrix equations over Euclidean imaginary quadratic rings. An effective method of constructing of such solutions is suggested.https://journals.pnu.edu.ua/index.php/cmp/article/view/4069quadratic ringmatrix$(z,k)$-equivalence of matricesmatrix diophantine equationsolution of matrix equation
spellingShingle N.B. Ladzoryshyn
V.M. Petrychkovych
H.V. Zelisko
Matrix Diophantine equations over quadratic rings and their solutions
Karpatsʹkì Matematičnì Publìkacìï
quadratic ring
matrix
$(z,k)$-equivalence of matrices
matrix diophantine equation
solution of matrix equation
title Matrix Diophantine equations over quadratic rings and their solutions
title_full Matrix Diophantine equations over quadratic rings and their solutions
title_fullStr Matrix Diophantine equations over quadratic rings and their solutions
title_full_unstemmed Matrix Diophantine equations over quadratic rings and their solutions
title_short Matrix Diophantine equations over quadratic rings and their solutions
title_sort matrix diophantine equations over quadratic rings and their solutions
topic quadratic ring
matrix
$(z,k)$-equivalence of matrices
matrix diophantine equation
solution of matrix equation
url https://journals.pnu.edu.ua/index.php/cmp/article/view/4069
work_keys_str_mv AT nbladzoryshyn matrixdiophantineequationsoverquadraticringsandtheirsolutions
AT vmpetrychkovych matrixdiophantineequationsoverquadraticringsandtheirsolutions
AT hvzelisko matrixdiophantineequationsoverquadraticringsandtheirsolutions