Meng, Fanyun; Wei, Junchao; Chen, Ruijuan Weak \(e\)-symmetric rings. (English) Zbl 07681730 Commun. Algebra 51, No. 7, 3042-3050 (2023). MSC: 16U80 16U10 15A09 16W10 16B99 PDF BibTeX XML Cite \textit{F. Meng} et al., Commun. Algebra 51, No. 7, 3042--3050 (2023; Zbl 07681730) Full Text: DOI OpenURL
Dolžan, David Invertible matrices over a class of semirings. (English) Zbl 07664069 J. Algebra Appl. 22, No. 4, Article ID 2350079, 11 p. (2023). MSC: 15A09 16Y60 16U60 PDF BibTeX XML Cite \textit{D. Dolžan}, J. Algebra Appl. 22, No. 4, Article ID 2350079, 11 p. (2023; Zbl 07664069) Full Text: DOI OpenURL
Goyal, Dimple Rani; Khurana, Dinesh A characterisation of matrix rings. (English) Zbl 07657545 Bull. Aust. Math. Soc. 107, No. 1, 95-101 (2023). MSC: 16U99 16S50 PDF BibTeX XML Cite \textit{D. R. Goyal} and \textit{D. Khurana}, Bull. Aust. Math. Soc. 107, No. 1, 95--101 (2023; Zbl 07657545) Full Text: DOI OpenURL
Tang, Gaohua; Su, Huadong; Yuan, Pingzhi Quasi-clean rings and strongly quasi-clean rings. (English) Zbl 07654816 Commun. Contemp. Math. 25, No. 2, Article ID 2150079, 19 p. (2023). MSC: 16L30 16S50 16U60 PDF BibTeX XML Cite \textit{G. Tang} et al., Commun. Contemp. Math. 25, No. 2, Article ID 2150079, 19 p. (2023; Zbl 07654816) Full Text: DOI OpenURL
Bala, Neeru; Ghosh, Nirupam; Sarkar, Jaydeb Invariant subspaces of idempotents on Hilbert spaces. (English) Zbl 07634792 Integral Equations Oper. Theory 95, No. 1, Paper No. 4, 16 p. (2023). Reviewer: Elhadj Dahia (Bou Saâda) MSC: 47A15 46B50 47B15 15A60 47B10 PDF BibTeX XML Cite \textit{N. Bala} et al., Integral Equations Oper. Theory 95, No. 1, Paper No. 4, 16 p. (2023; Zbl 07634792) Full Text: DOI arXiv OpenURL
Zhou, Yiqiang Rings over which matrices are products of \(q\)-potents. (English) Zbl 07678687 Linear Multilinear Algebra 70, No. 21, 6375-6392 (2022). MSC: 15B33 15A23 16S50 PDF BibTeX XML Cite \textit{Y. Zhou}, Linear Multilinear Algebra 70, No. 21, 6375--6392 (2022; Zbl 07678687) Full Text: DOI OpenURL
Donley, Robert W. Semi-magic matrices for dihedral groups. (English) Zbl 07672940 Nathanson, Melvyn B. (ed.), Combinatorial and additive number theory V. Selected papers based on the presentations at the CANT 2021 workshop, New York, NY, USA, virtual event, May 24–28, 2021. Cham: Springer. Springer Proc. Math. Stat. 395, 119-138 (2022). MSC: 20C05 20C10 05A15 05A16 PDF BibTeX XML Cite \textit{R. W. Donley}, Springer Proc. Math. Stat. 395, 119--138 (2022; Zbl 07672940) Full Text: DOI arXiv OpenURL
Chen, Huanyin; Sheibani, Marjan; Bahmani, Rahman Certain additive decompositions in a noncommutative ring. (English) Zbl 07655796 Czech. Math. J. 72, No. 4, 1217-1226 (2022). MSC: 15A09 16E50 16U60 PDF BibTeX XML Cite \textit{H. Chen} et al., Czech. Math. J. 72, No. 4, 1217--1226 (2022; Zbl 07655796) Full Text: DOI OpenURL
Drensky, Vesselin Idempotents of \(2 \times 2\) matrix rings over rings of formal power series. (English) Zbl 07638876 Linear Multilinear Algebra 70, No. 20, 5207-5213 (2022). Reviewer: Wen-Fong Ke (Tainan) MSC: 16U40 16S50 15A15 15B33 15A54 13B25 13F25 PDF BibTeX XML Cite \textit{V. Drensky}, Linear Multilinear Algebra 70, No. 20, 5207--5213 (2022; Zbl 07638876) Full Text: DOI arXiv OpenURL
Kose, Handan; Ungor, Burcu; Harmanci, Abdullah Reversible ring property via idempotent elements. (English) Zbl 1508.16049 Georgian Math. J. 29, No. 6, 851-862 (2022). MSC: 16U80 16N60 16S50 PDF BibTeX XML Cite \textit{H. Kose} et al., Georgian Math. J. 29, No. 6, 851--862 (2022; Zbl 1508.16049) Full Text: DOI arXiv OpenURL
Călugăreanu, Grigore \(3 \times 3\) idempotent matrices over some domains and a conjecture on nil-clean matrices. (English) Zbl 07622000 An. Științ. Univ. Al. I. Cuza Iași, Ser. Nouă, Mat. 68, No. 1, 91-106 (2022). MSC: 16U40 16U99 15B36 PDF BibTeX XML Cite \textit{G. Călugăreanu}, An. Științ. Univ. Al. I. Cuza Iași, Ser. Nouă, Mat. 68, No. 1, 91--106 (2022; Zbl 07622000) Full Text: DOI OpenURL
Garcés, Jorge J.; Khrypchenko, Mykola Linear maps preserving products equal to primitive idempotents of an incidence algebra. (English) Zbl 07596237 J. Algebra 612, 460-474 (2022). Reviewer: Muge Kanuni (Düzce) MSC: 16S50 15A86 17C27 PDF BibTeX XML Cite \textit{J. J. Garcés} and \textit{M. Khrypchenko}, J. Algebra 612, 460--474 (2022; Zbl 07596237) Full Text: DOI arXiv OpenURL
Briec, Walter Determinants and limit systems in some idempotent and non-associative algebraic structure. (English) Zbl 1495.15039 Linear Algebra Appl. 651, 162-208 (2022). MSC: 15A80 15A04 15A15 47A05 06A12 16U40 PDF BibTeX XML Cite \textit{W. Briec}, Linear Algebra Appl. 651, 162--208 (2022; Zbl 1495.15039) Full Text: DOI arXiv OpenURL
Paykan, Kamal Triangulating dimension of skew generalized power series rings. (English) Zbl 1496.16044 J. Algebra Appl. 21, No. 5, Article ID 2250095, 15 p. (2022). Reviewer: Edward Mosteig (Los Angeles) MSC: 16W60 16W70 16S35 06F05 PDF BibTeX XML Cite \textit{K. Paykan}, J. Algebra Appl. 21, No. 5, Article ID 2250095, 15 p. (2022; Zbl 1496.16044) Full Text: DOI OpenURL
Călugăreanu, Grigore; Pop, Horia F. On idempotent stable range 1 matrices. (English) Zbl 1497.16035 Spec. Matrices 10, 251-257 (2022). MSC: 16U40 15B33 15B36 16S50 PDF BibTeX XML Cite \textit{G. Călugăreanu} and \textit{H. F. Pop}, Spec. Matrices 10, 251--257 (2022; Zbl 1497.16035) Full Text: DOI arXiv OpenURL
Zhou, Yiqiang A multiplicative dual of nil-clean rings. (English) Zbl 1495.16038 Can. Math. Bull. 65, No. 1, 39-43 (2022). Reviewer: Simion Sorin Breaz (Cluj-Napoca) MSC: 16U99 16L30 16S50 PDF BibTeX XML Cite \textit{Y. Zhou}, Can. Math. Bull. 65, No. 1, 39--43 (2022; Zbl 1495.16038) Full Text: DOI OpenURL
Tang, Gaohua; Zhou, Yiqiang Nil \(\mathcal{G} \)-cleanness and strongly nil \(\mathcal{G} \)-cleanness of rings. (English) Zbl 1495.16037 J. Algebra Appl. 21, No. 4, Article ID 2250077, 16 p. (2022). Reviewer: Simion Sorin Breaz (Cluj-Napoca) MSC: 16U99 16N20 16S50 16U60 PDF BibTeX XML Cite \textit{G. Tang} and \textit{Y. Zhou}, J. Algebra Appl. 21, No. 4, Article ID 2250077, 16 p. (2022; Zbl 1495.16037) Full Text: DOI OpenURL
Maity, S. K.; Ghosh, R. The congruence \(\mathcal{Y}^\ast\) on quasi completely regular semirings. (English) Zbl 1491.16047 Asian-Eur. J. Math. 15, No. 2, Article ID 2250024, 14 p. (2022). MSC: 16Y60 PDF BibTeX XML Cite \textit{S. K. Maity} and \textit{R. Ghosh}, Asian-Eur. J. Math. 15, No. 2, Article ID 2250024, 14 p. (2022; Zbl 1491.16047) Full Text: DOI arXiv OpenURL
Ah-Pine, Julien Learning doubly stochastic and nearly idempotent affinity matrix for graph-based clustering. (English) Zbl 1495.62048 Eur. J. Oper. Res. 299, No. 3, 1069-1078 (2022). MSC: 62H30 68T05 90C22 90C90 PDF BibTeX XML Cite \textit{J. Ah-Pine}, Eur. J. Oper. Res. 299, No. 3, 1069--1078 (2022; Zbl 1495.62048) Full Text: DOI HAL OpenURL
Deng, Weina; Zhao, Xianzhong; Cheng, Yanliang; Yu, Baomin On the groups associated with a tropical \(n\times n\) matrix. (English) Zbl 07472501 Linear Algebra Appl. 639, 1-17 (2022). MSC: 15A80 14T10 PDF BibTeX XML Cite \textit{W. Deng} et al., Linear Algebra Appl. 639, 1--17 (2022; Zbl 07472501) Full Text: DOI OpenURL
Garcés, Jorge J.; Khrypchenko, Mykola Potent preservers of incidence algebras. (English) Zbl 1503.16034 Linear Algebra Appl. 635, 171-200 (2022). Reviewer: Sorin Dascalescu (Bucureşti) MSC: 16S50 15A86 16W20 17A36 17B40 17C30 17C27 PDF BibTeX XML Cite \textit{J. J. Garcés} and \textit{M. Khrypchenko}, Linear Algebra Appl. 635, 171--200 (2022; Zbl 1503.16034) Full Text: DOI arXiv OpenURL
Călugăreanu, Grigore Singular matrices that are products of two idempotents or products of two nilpotents. (English) Zbl 1485.15037 Spec. Matrices 10, 47-55 (2022). Reviewer: Laura Cossu (Padova) MSC: 15B33 15A23 PDF BibTeX XML Cite \textit{G. Călugăreanu}, Spec. Matrices 10, 47--55 (2022; Zbl 1485.15037) Full Text: DOI OpenURL
Yang, Lin; Yang, Sheng-Liang On generalized inverses of \(m \times n\) matrices over a pseudoring. (English) Zbl 1480.15004 Vietnam J. Math. 50, No. 1, 261-274 (2022). Reviewer: Zhen Chao (Milwaukee) MSC: 15A09 PDF BibTeX XML Cite \textit{L. Yang} and \textit{S.-L. Yang}, Vietnam J. Math. 50, No. 1, 261--274 (2022; Zbl 1480.15004) Full Text: DOI OpenURL
Šter, Janez Nil-clean index of \(M_n(\mathbb{F}_2)\). (English) Zbl 1485.16033 Linear Algebra Appl. 632, 294-307 (2022). Reviewer: Grigore Călugăreanu (Cluj-Napoca) MSC: 16U40 16E50 PDF BibTeX XML Cite \textit{J. Šter}, Linear Algebra Appl. 632, 294--307 (2022; Zbl 1485.16033) Full Text: DOI OpenURL
Zhu, Haiyang; Chen, Jianlong; Zhou, Yukun On elements whose Moore-Penrose inverse is idempotent in a \(\ast\)-ring. (English) Zbl 1493.16044 Turk. J. Math. 45, No. 2, 878-889 (2021). MSC: 16U90 16U40 15A09 PDF BibTeX XML Cite \textit{H. Zhu} et al., Turk. J. Math. 45, No. 2, 878--889 (2021; Zbl 1493.16044) Full Text: DOI OpenURL
Aristidou, Michael; Hailemariam, Kidus Tripotent elements in quaternion rings over \(\mathbb{Z}_p\). (English) Zbl 1508.16025 Acta Univ. Sapientiae, Math. 13, No. 1, 78-87 (2021). MSC: 16H05 17A35 20H25 PDF BibTeX XML Cite \textit{M. Aristidou} and \textit{K. Hailemariam}, Acta Univ. Sapientiae, Math. 13, No. 1, 78--87 (2021; Zbl 1508.16025) Full Text: DOI OpenURL
Wu, Weicai; Liu, Junji Powers and commutativity of 2-order matrices. (Chinese. English summary) Zbl 1488.15016 J. Dalian Univ. Technol. 61, No. 4, 431-435 (2021). MSC: 15A16 15A27 15A21 PDF BibTeX XML Cite \textit{W. Wu} and \textit{J. Liu}, J. Dalian Univ. Technol. 61, No. 4, 431--435 (2021; Zbl 1488.15016) Full Text: DOI OpenURL
Chen, Hongying; Lee, Yang; Piao, Zhelin Structures related to right duo factor rings. (English) Zbl 1483.16004 Kyungpook Math. J. 61, No. 1, 11-21 (2021). MSC: 16D25 16N40 16N60 16S36 16S50 PDF BibTeX XML Cite \textit{H. Chen} et al., Kyungpook Math. J. 61, No. 1, 11--21 (2021; Zbl 1483.16004) Full Text: DOI OpenURL
Baksalary, Oskar Maria; Trenkler, Götz A partial ordering approach to characterize properties of a pair of orthogonal projectors. (English) Zbl 1477.15003 Indian J. Pure Appl. Math. 52, No. 2, 323-334 (2021). MSC: 15A10 15A27 15B57 PDF BibTeX XML Cite \textit{O. M. Baksalary} and \textit{G. Trenkler}, Indian J. Pure Appl. Math. 52, No. 2, 323--334 (2021; Zbl 1477.15003) Full Text: DOI OpenURL
Kostić, Aleksandra S.; Petrović, Zoran Z.; Pucanović, Zoran S.; Roslavcev, Maja On the generalized strongly nil-clean property of matrix rings. (English) Zbl 1496.16030 Algebra Colloq. 28, No. 4, 625-634 (2021). Reviewer: Branislav Prvulović (Beograd) MSC: 16S50 16U99 PDF BibTeX XML Cite \textit{A. S. Kostić} et al., Algebra Colloq. 28, No. 4, 625--634 (2021; Zbl 1496.16030) Full Text: DOI OpenURL
Wang, Hongxing; Liu, Xiaoji Solutions of the matrix inequality \(AXA\overset{?}{\leq}A\) in some partial orders. (English) Zbl 1508.15012 Appl. Math. Comput. 396, Article ID 125940, 11 p. (2021). MSC: 15A39 15A09 15A24 15B57 PDF BibTeX XML Cite \textit{H. Wang} and \textit{X. Liu}, Appl. Math. Comput. 396, Article ID 125940, 11 p. (2021; Zbl 1508.15012) Full Text: DOI OpenURL
Bikchentaev, Airat M.; Ivanshin, Pyotr N. On operators all of which powers have the same trace. (English) Zbl 1493.46072 Int. J. Theor. Phys. 60, No. 2, 534-545 (2021). MSC: 46L05 46L30 15A30 PDF BibTeX XML Cite \textit{A. M. Bikchentaev} and \textit{P. N. Ivanshin}, Int. J. Theor. Phys. 60, No. 2, 534--545 (2021; Zbl 1493.46072) Full Text: DOI OpenURL
Dolžan, David Bounds for the number of idempotents in finite rings. (English) Zbl 1493.16019 Commun. Algebra 49, No. 11, 4800-4807 (2021). Reviewer: Huang Wenxue (Scarborough) MSC: 16P10 16N40 16U99 PDF BibTeX XML Cite \textit{D. Dolžan}, Commun. Algebra 49, No. 11, 4800--4807 (2021; Zbl 1493.16019) Full Text: DOI OpenURL
Chen, Meixiang; Ye, Lingying; Yang, Zhongpeng Nontrivial solutions of idempotency of linear combinations of generalized quadratic matrix and its idempotent matrix. (Chinese. English summary) Zbl 1488.15029 J. Jilin Univ., Sci. 59, No. 2, 221-228 (2021). MSC: 15A24 15A22 PDF BibTeX XML Cite \textit{M. Chen} et al., J. Jilin Univ., Sci. 59, No. 2, 221--228 (2021; Zbl 1488.15029) Full Text: DOI OpenURL
Abyzov, A. N.; Tapkin, D. T. When is every matrix over a ring the sum of two tripotents? (English) Zbl 1481.15013 Linear Algebra Appl. 630, 316-325 (2021). Reviewer: Septimiu Crivei (Cluj-Napoca) MSC: 15A21 15B33 16S50 PDF BibTeX XML Cite \textit{A. N. Abyzov} and \textit{D. T. Tapkin}, Linear Algebra Appl. 630, 316--325 (2021; Zbl 1481.15013) Full Text: DOI OpenURL
Jamshidvand, Sedighe; Ghalandarzadeh, Shaban; Amiraslani, Amirhossein; Olia, Fateme Solving linear systems over idempotent semifields through \(LU\)-factorization. (English) Zbl 1490.65045 Rend. Circ. Mat. Palermo (2) 70, No. 2, 769-791 (2021). MSC: 65F05 15A06 12K10 PDF BibTeX XML Cite \textit{S. Jamshidvand} et al., Rend. Circ. Mat. Palermo (2) 70, No. 2, 769--791 (2021; Zbl 1490.65045) Full Text: DOI arXiv OpenURL
Ferraz, R. A.; Polcino Milies, C.; Taufer, E. Left ideals of matrix rings and error-correcting codes. (English) Zbl 1483.94065 Appl. Algebra Eng. Commun. Comput. 32, No. 3, 311-320 (2021). Reviewer: Matteo Bonini (Dublin) MSC: 94B05 11T71 PDF BibTeX XML Cite \textit{R. A. Ferraz} et al., Appl. Algebra Eng. Commun. Comput. 32, No. 3, 311--320 (2021; Zbl 1483.94065) Full Text: DOI OpenURL
Cui, Jian; Xia, Guoli; Zhou, Yiqiang Nil-clean rings with involution. (English) Zbl 1484.16020 Algebra Colloq. 28, No. 3, 367-378 (2021). Reviewer: Stefan Veldsman (Port Elizabeth) MSC: 16N80 16U99 16W10 16S50 PDF BibTeX XML Cite \textit{J. Cui} et al., Algebra Colloq. 28, No. 3, 367--378 (2021; Zbl 1484.16020) Full Text: DOI OpenURL
Chen, Huanyin; Sheibani, Marjan The \(g\)-Hirano inverse in Banach algebras. (English) Zbl 1477.46051 Linear Multilinear Algebra 69, No. 7, 1352-1362 (2021). MSC: 46H05 47A05 15A09 PDF BibTeX XML Cite \textit{H. Chen} and \textit{M. Sheibani}, Linear Multilinear Algebra 69, No. 7, 1352--1362 (2021; Zbl 1477.46051) Full Text: DOI OpenURL
Cîmpean, A.; Danchev, P. \(n\)-torsion clean and almost \(n\)-torsion clean matrix rings. (English. Russian original) Zbl 1476.16037 Russ. Math. 65, No. 1, 47-56 (2021); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2021, No. 1, 52-63 (2021). Reviewer: Grigore Călugăreanu (Cluj-Napoca) MSC: 16U40 16U60 15B33 PDF BibTeX XML Cite \textit{A. Cîmpean} and \textit{P. Danchev}, Russ. Math. 65, No. 1, 47--56 (2021; Zbl 1476.16037); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2021, No. 1, 52--63 (2021) Full Text: DOI arXiv OpenURL
Hou, Xin Idempotents in triangular matrix rings. (English) Zbl 1464.16032 Linear Multilinear Algebra 69, No. 2, 296-304 (2021). MSC: 16U40 16S50 PDF BibTeX XML Cite \textit{X. Hou}, Linear Multilinear Algebra 69, No. 2, 296--304 (2021; Zbl 1464.16032) Full Text: DOI OpenURL
Abyzov, A. N.; Tapkin, D. T. Rings over which matrices are sums of idempotent and \(q \)-potent matrices. (English. Russian original) Zbl 1462.16040 Sib. Math. J. 62, No. 1, 1-13 (2021); translation from Sib. Mat. Zh. 62, No. 1, 3-18 (2021). Reviewer: Grigore Călugăreanu (Cluj-Napoca) MSC: 16U99 16S50 15B33 15B99 PDF BibTeX XML Cite \textit{A. N. Abyzov} and \textit{D. T. Tapkin}, Sib. Math. J. 62, No. 1, 1--13 (2021; Zbl 1462.16040); translation from Sib. Mat. Zh. 62, No. 1, 3--18 (2021) Full Text: DOI OpenURL
Chen, Huanyin; Sheibani, Marjan Expressions for the g-Drazin inverse in a Banach algebra. (English) Zbl 07541454 Filomat 34, No. 11, 3845-3854 (2020). MSC: 46H05 47A05 PDF BibTeX XML Cite \textit{H. Chen} and \textit{M. Sheibani}, Filomat 34, No. 11, 3845--3854 (2020; Zbl 07541454) Full Text: DOI arXiv OpenURL
Vasudevan, B.; Fathima, N. Anis Idempotent matrices in Minkowski space. (English) Zbl 1499.15130 Adv. Appl. Discrete Math. 24, No. 2, 165-177 (2020). MSC: 15B99 51B20 PDF BibTeX XML Cite \textit{B. Vasudevan} and \textit{N. A. Fathima}, Adv. Appl. Discrete Math. 24, No. 2, 165--177 (2020; Zbl 1499.15130) Full Text: DOI OpenURL
Alqahtani, Mesfer; Özel, Cenap; Zekraoui, Hanifa; Alshammari, Ibtesam Systems of \(\omega \)-linear balances over symmetrized omega algebra. (English) Zbl 1499.16137 JP J. Algebra Number Theory Appl. 47, No. 2, 181-215 (2020). MSC: 16Y60 16Y99 PDF BibTeX XML Cite \textit{M. Alqahtani} et al., JP J. Algebra Number Theory Appl. 47, No. 2, 181--215 (2020; Zbl 1499.16137) Full Text: DOI OpenURL
Tian, Yongge Miscellaneous equalities for idempotent matrices with applications. (English) Zbl 1478.15003 Open Math. 18, 671-714 (2020). MSC: 15A03 15A09 15A27 47A05 PDF BibTeX XML Cite \textit{Y. Tian}, Open Math. 18, 671--714 (2020; Zbl 1478.15003) Full Text: DOI OpenURL
Yang, Lin; Jiang, Meiyang On regular matrices over a pseudoring. (Chinese. English summary) Zbl 1474.15080 Pure Appl. Math. 36, No. 4, 441-447 (2020). MSC: 15B33 15A09 PDF BibTeX XML Cite \textit{L. Yang} and \textit{M. Jiang}, Pure Appl. Math. 36, No. 4, 441--447 (2020; Zbl 1474.15080) Full Text: DOI OpenURL
Danchev, Peter V. Certain properties of square matrices over fields with applications to rings. (English) Zbl 1476.16039 Rev. Colomb. Mat. 54, No. 2, 109-116 (2020). Reviewer: Wen-Fong Ke (Tainan) MSC: 16U99 16S50 16E50 16W10 13B99 PDF BibTeX XML Cite \textit{P. V. Danchev}, Rev. Colomb. Mat. 54, No. 2, 109--116 (2020; Zbl 1476.16039) Full Text: DOI OpenURL
Chen, Huanyin; Abdolyousefi, Marjan Sheibani g-Drazin inverses for operator matrices. (English) Zbl 07347966 Oper. Matrices 14, No. 1, 23-31 (2020). MSC: 47A08 47A05 15A09 PDF BibTeX XML Cite \textit{H. Chen} and \textit{M. S. Abdolyousefi}, Oper. Matrices 14, No. 1, 23--31 (2020; Zbl 07347966) Full Text: DOI OpenURL
Chen, Meixiang; Yang, Zhongpeng; Lv, Hongbin; Su, Ruyan The quadratic matrix basis and base ranks of matrix space. (Chinese. English summary) Zbl 1474.15001 Math. Pract. Theory 50, No. 19, 199-205 (2020). MSC: 15A03 15A30 15A21 PDF BibTeX XML Cite \textit{M. Chen} et al., Math. Pract. Theory 50, No. 19, 199--205 (2020; Zbl 1474.15001) OpenURL
Chen, Jianlong; Gao, Yuefeng; Li, Lifang Drazin invertibility in a certain finite-dimensional algebra generated by two idempotents. (English) Zbl 1466.16041 Numer. Funct. Anal. Optim. 41, No. 14, 1804-1817 (2020). MSC: 16U90 16U40 15A09 PDF BibTeX XML Cite \textit{J. Chen} et al., Numer. Funct. Anal. Optim. 41, No. 14, 1804--1817 (2020; Zbl 1466.16041) Full Text: DOI OpenURL
Suksumran, Teerapong On the equality of rank and trace for an idempotent matrix: a linear transformation approach. (English) Zbl 1463.15001 Southeast Asian Bull. Math. 44, No. 3, 433-438 (2020). MSC: 15A03 15A04 PDF BibTeX XML Cite \textit{T. Suksumran}, Southeast Asian Bull. Math. 44, No. 3, 433--438 (2020; Zbl 1463.15001) OpenURL
de la Puente, María Jesús; Clavería, Pedro Luis Isocanted alcoved polytopes. (English) Zbl 07285953 Appl. Math., Praha 65, No. 6, 703-726 (2020). MSC: 52B12 15A80 PDF BibTeX XML Cite \textit{M. J. de la Puente} and \textit{P. L. Clavería}, Appl. Math., Praha 65, No. 6, 703--726 (2020; Zbl 07285953) Full Text: DOI arXiv OpenURL
de la Puente, M. J. Quasi-Euclidean classification of alcoved convex polyhedra. (English) Zbl 1451.52007 Linear Multilinear Algebra 68, No. 10, 2110-2142 (2020). MSC: 52B10 52B12 15A80 14T90 PDF BibTeX XML Cite \textit{M. J. de la Puente}, Linear Multilinear Algebra 68, No. 10, 2110--2142 (2020; Zbl 1451.52007) Full Text: DOI arXiv OpenURL
Liu, Xifu Some new explicit solutions of the Yang-Baxter-like matrix equation for an idempotent matrix. (Chinese. English summary) Zbl 1463.15039 Numer. Math., Nanjing 42, No. 1, 64-71 (2020). MSC: 15A24 16T25 PDF BibTeX XML Cite \textit{X. Liu}, Numer. Math., Nanjing 42, No. 1, 64--71 (2020; Zbl 1463.15039) OpenURL
Heidari, Dariush; Davvaz, Bijan Quasi-reversibility of the ring of \(2 \times 2\) matrices over an arbitrary field. (English) Zbl 1459.16030 Kyungpook Math. J. 60, No. 1, 71-72 (2020). Reviewer: Mykola Khrypchenko (Florianópolis) MSC: 16S50 16U40 PDF BibTeX XML Cite \textit{D. Heidari} and \textit{B. Davvaz}, Kyungpook Math. J. 60, No. 1, 71--72 (2020; Zbl 1459.16030) Full Text: DOI OpenURL
Tan, Yi-Jia Diagonability of matrices over commutative semirings. (English) Zbl 1450.15011 Linear Multilinear Algebra 68, No. 9, 1743-1752 (2020). Reviewer: Tin Yau Tam (Reno) MSC: 15A20 15A21 15B33 PDF BibTeX XML Cite \textit{Y.-J. Tan}, Linear Multilinear Algebra 68, No. 9, 1743--1752 (2020; Zbl 1450.15011) Full Text: DOI OpenURL
Olia, Fateme; Ghalandarzadeh, Shaban; Amiraslani, Amirhossein; Jamshidvand, Sedighe Analysis of linear systems over idempotent semifields. (English) Zbl 1452.15017 Math. Sci., Springer 14, No. 2, 137-146 (2020). MSC: 15A80 12K10 15A06 16Y60 65F05 PDF BibTeX XML Cite \textit{F. Olia} et al., Math. Sci., Springer 14, No. 2, 137--146 (2020; Zbl 1452.15017) Full Text: DOI arXiv OpenURL
Ánh, Pham N.; Birkenmeier, Gary F.; van Wyk, Leon Peirce decompositions, idempotents and rings. (English) Zbl 1468.16041 J. Algebra 564, 247-275 (2020). Reviewer: Thiago Castilho de Mello (São José dos Campos) MSC: 16S50 16D20 16D70 PDF BibTeX XML Cite \textit{P. N. Ánh} et al., J. Algebra 564, 247--275 (2020; Zbl 1468.16041) Full Text: DOI arXiv OpenURL
Călugăreanu, Grigore Idempotent matrices with invertible transpose. (English) Zbl 1448.15040 Georgian Math. J. 27, No. 3, 351-353 (2020). MSC: 15B33 15A54 15A09 PDF BibTeX XML Cite \textit{G. Călugăreanu}, Georgian Math. J. 27, No. 3, 351--353 (2020; Zbl 1448.15040) Full Text: DOI OpenURL
Abdolyousefi, Marjan Sheibani Nilpotent and linear combination of idempotent matrices. (English) Zbl 1460.16038 Int. Electron. J. Algebra 28, 220-228 (2020). MSC: 16U40 15A30 PDF BibTeX XML Cite \textit{M. S. Abdolyousefi}, Int. Electron. J. Algebra 28, 220--228 (2020; Zbl 1460.16038) Full Text: Link OpenURL
Breaz, Simion; Megieşan, Sergiu Nonderogatory matrices as sums of idempotent and nilpotent matrices. (English) Zbl 1447.15029 Linear Algebra Appl. 605, 239-248 (2020). MSC: 15B33 15A24 15A83 PDF BibTeX XML Cite \textit{S. Breaz} and \textit{S. Megieşan}, Linear Algebra Appl. 605, 239--248 (2020; Zbl 1447.15029) Full Text: DOI OpenURL
Mosić, Dijana Representations for the image-kernel \((p,q)\)-inverses of block matrices in rings. (English) Zbl 1441.16028 Georgian Math. J. 27, No. 2, 297-305 (2020). MSC: 16S50 16U40 15A09 46H05 PDF BibTeX XML Cite \textit{D. Mosić}, Georgian Math. J. 27, No. 2, 297--305 (2020; Zbl 1441.16028) Full Text: DOI OpenURL
Khurana, Anjana; Khurana, Dinesh I-reversible rings. (English) Zbl 1460.16039 J. Algebra Appl. 19, No. 4, Article ID 2050076, 9 p. (2020). MSC: 16U40 16U90 16S50 PDF BibTeX XML Cite \textit{A. Khurana} and \textit{D. Khurana}, J. Algebra Appl. 19, No. 4, Article ID 2050076, 9 p. (2020; Zbl 1460.16039) Full Text: DOI OpenURL
Huang, Zejun; Lin, Huiqiu On \(k\)-idempotent 0-1 matrices. (English) Zbl 1437.05087 Linear Algebra Appl. 597, 187-197 (2020). MSC: 05C20 05C50 15A99 15B34 PDF BibTeX XML Cite \textit{Z. Huang} and \textit{H. Lin}, Linear Algebra Appl. 597, 187--197 (2020; Zbl 1437.05087) Full Text: DOI arXiv OpenURL
Gould, Victoria; Johnson, Marianne; Naz, Munazza Matrix semigroups over semirings. (English) Zbl 1486.20073 Int. J. Algebra Comput. 30, No. 2, 267-337 (2020). MSC: 20M10 20M20 06F20 PDF BibTeX XML Cite \textit{V. Gould} et al., Int. J. Algebra Comput. 30, No. 2, 267--337 (2020; Zbl 1486.20073) Full Text: DOI arXiv OpenURL
Mosić, Dijana Extended \(g\)-Drazin inverse in a Banach algebra. (English) Zbl 1447.46036 Bull. Malays. Math. Sci. Soc. (2) 43, No. 1, 879-892 (2020). MSC: 46H05 46H99 15A09 PDF BibTeX XML Cite \textit{D. Mosić}, Bull. Malays. Math. Sci. Soc. (2) 43, No. 1, 879--892 (2020; Zbl 1447.46036) Full Text: DOI OpenURL
Balmaceda, Jose Maria P.; Datu, Joanne Pauline P. Idempotents in certain matrix rings over polynomial rings. (English) Zbl 1444.16051 Int. Electron. J. Algebra 27, 1-12 (2020). Reviewer: Ánh Pham Ngoc (Budapest) MSC: 16U40 16S50 13F20 13B25 PDF BibTeX XML Cite \textit{J. M. P. Balmaceda} and \textit{J. P. P. Datu}, Int. Electron. J. Algebra 27, 1--12 (2020; Zbl 1444.16051) Full Text: Link OpenURL
Stanimirović, Stefan; Stamenković, Aleksandar; Ćirić, Miroslav Improved algorithms for computing the greatest right and left invariant Boolean matrices and their application. (English) Zbl 1499.15119 Filomat 33, No. 9, 2809-2831 (2019). MSC: 15B34 15A24 PDF BibTeX XML Cite \textit{S. Stanimirović} et al., Filomat 33, No. 9, 2809--2831 (2019; Zbl 1499.15119) Full Text: DOI OpenURL
Kwak, Tai Keun; Lee, Seung İck; Lee, Yang Quasi-normality of idempotents on nilpotents. (English) Zbl 1488.16101 Hacet. J. Math. Stat. 48, No. 6, 1744-1760 (2019). MSC: 16U40 16N40 16U80 PDF BibTeX XML Cite \textit{T. K. Kwak} et al., Hacet. J. Math. Stat. 48, No. 6, 1744--1760 (2019; Zbl 1488.16101) Full Text: DOI OpenURL
Su, Ruyan; Yang, Zhongpeng; Chen, Meixiang Idempotent basis and involutory basis of \(n \times n\) matrix space. (Chinese. English summary) Zbl 1449.15034 J. Beihua Univ., Nat. Sci. 20, No. 6, 708-713 (2019). MSC: 15A21 15A04 PDF BibTeX XML Cite \textit{R. Su} et al., J. Beihua Univ., Nat. Sci. 20, No. 6, 708--713 (2019; Zbl 1449.15034) OpenURL
Bilous, A. M. Idempotent matrices over a duo ring. (English) Zbl 07172135 Mat. Stud. 52, No. 2, 133-137 (2019). MSC: 20H25 PDF BibTeX XML Cite \textit{A. M. Bilous}, Mat. Stud. 52, No. 2, 133--137 (2019; Zbl 07172135) Full Text: DOI OpenURL
Gau, Hwa-Long; Wang, Kuo-Zhong; Wu, Pei Yuan Constant norms and numerical radii of matrix powers. (English) Zbl 1432.15018 Oper. Matrices 13, No. 4, 1035-1054 (2019). MSC: 15A60 47A12 47A30 PDF BibTeX XML Cite \textit{H.-L. Gau} et al., Oper. Matrices 13, No. 4, 1035--1054 (2019; Zbl 1432.15018) Full Text: DOI OpenURL
Cîmpean, Andrada \(m\)-nil-clean companion matrices. (English) Zbl 1431.15018 Electron. J. Linear Algebra 35, 626-632 (2019). MSC: 15B33 15A24 15A83 16S50 PDF BibTeX XML Cite \textit{A. Cîmpean}, Electron. J. Linear Algebra 35, 626--632 (2019; Zbl 1431.15018) Full Text: Link OpenURL
Lv, Hongbin; Yang, Zhongpeng; Chen, Meixiang; Feng, Xiaoxia Jordan standard form of generalized cubic matrix. (Chinese. English summary) Zbl 1449.15032 J. Jilin Univ., Sci. 57, No. 3, 510-516 (2019). MSC: 15A20 15A21 PDF BibTeX XML Cite \textit{H. Lv} et al., J. Jilin Univ., Sci. 57, No. 3, 510--516 (2019; Zbl 1449.15032) Full Text: DOI OpenURL
Jain, S. K.; Leroy, A. Decomposition of singular elements of an algebra into product of idempotents, a survey. (English) Zbl 1430.16039 Dani, Shrikrishna G. (ed.) et al., Contributions in algebra and algebraic geometry. International conference on algebra, discrete mathematics and applications, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Maharashtra, India, December 9–11, 2017. Providence, RI: American Mathematical Society (AMS). Contemp. Math. 738, 57-74 (2019). MSC: 16U99 16U40 15B33 PDF BibTeX XML Cite \textit{S. K. Jain} and \textit{A. Leroy}, Contemp. Math. 738, 57--74 (2019; Zbl 1430.16039) Full Text: DOI OpenURL
Ghashghaei, Ebrahim; Koşan, Muhammet Tamer Rings in which every element is the sum of a left zero-divisor and an idempotent. (English) Zbl 1447.16038 Publ. Math. Debr. 95, No. 3-4, 321-334 (2019). Reviewer: Józef Drewniak (Rzeszów) MSC: 16U99 16U80 16W99 15B33 PDF BibTeX XML Cite \textit{E. Ghashghaei} and \textit{M. T. Koşan}, Publ. Math. Debr. 95, No. 3--4, 321--334 (2019; Zbl 1447.16038) Full Text: DOI OpenURL
Chen, Huanyin; Nabavi, Seyed Saeed; Abdolyousefi, Marjan Sheibani Strongly Drazin inverse in rings. (English) Zbl 1425.16024 Oper. Matrices 13, No. 2, 495-505 (2019). MSC: 16U60 15A09 PDF BibTeX XML Cite \textit{H. Chen} et al., Oper. Matrices 13, No. 2, 495--505 (2019; Zbl 1425.16024) Full Text: DOI OpenURL
Huang, Juan; Jin, Hai-Lan; Lee, Yang; Piao, Zhelin Reversible and pseudo-reversible rings. (English) Zbl 1432.16033 Bull. Korean Math. Soc. 56, No. 5, 1257-1272 (2019). MSC: 16U40 16U80 16S50 16S36 PDF BibTeX XML Cite \textit{J. Huang} et al., Bull. Korean Math. Soc. 56, No. 5, 1257--1272 (2019; Zbl 1432.16033) Full Text: DOI OpenURL
Özalan, Nurten Urlu; Çevik, A. Sinan; Karpuz, Eylem Güzel A new semigroup obtained via known ones. (English) Zbl 1468.20096 Asian-Eur. J. Math. 12, No. 6, Article ID 2040008, 13 p. (2019). MSC: 20M05 20M17 20M10 PDF BibTeX XML Cite \textit{N. U. Özalan} et al., Asian-Eur. J. Math. 12, No. 6, Article ID 2040008, 13 p. (2019; Zbl 1468.20096) Full Text: DOI OpenURL
Li, Hongwei A maximum idempotent-separating congruence on a Rees matrix semigroup over a Clifford semigroup with identity. (Chinese. English summary) Zbl 1438.20056 J. Jiangsu Norm. Univ., Nat. Sci. 37, No. 1, 40-42 (2019). MSC: 20M10 20M18 PDF BibTeX XML Cite \textit{H. Li}, J. Jiangsu Norm. Univ., Nat. Sci. 37, No. 1, 40--42 (2019; Zbl 1438.20056) Full Text: DOI OpenURL
Gau, Hwa-Long; Wang, Kuo-Zhong; Wu, Pei Yuan Equality of numerical ranges of matrix powers. (English) Zbl 1422.15008 Linear Algebra Appl. 578, 95-110 (2019). Reviewer: Jan-David Hardtke (Leipzig) MSC: 15A60 47A12 PDF BibTeX XML Cite \textit{H.-L. Gau} et al., Linear Algebra Appl. 578, 95--110 (2019; Zbl 1422.15008) Full Text: DOI OpenURL
Zhang, Haonan Idempotent states on Sekine quantum groups. (English) Zbl 1477.46076 Commun. Algebra 47, No. 10, 4095-4113 (2019). MSC: 46L67 46L30 20G42 15A24 PDF BibTeX XML Cite \textit{H. Zhang}, Commun. Algebra 47, No. 10, 4095--4113 (2019; Zbl 1477.46076) Full Text: DOI arXiv OpenURL
Carlson, Jon F. Computing with matrix and basic algebras. (English) Zbl 1415.16022 Feldvoss, Jörg (ed.) et al., Advances in algebra. Proceedings of the southern regional algebra conference, SRAC 2017, Mobile, AL, USA, March 17–19, 2017. Cham: Springer. Springer Proc. Math. Stat. 277, 95-109 (2019). MSC: 16S50 16Z05 PDF BibTeX XML Cite \textit{J. F. Carlson}, Springer Proc. Math. Stat. 277, 95--109 (2019; Zbl 1415.16022) Full Text: DOI OpenURL
Abdolyousefi, Marjan Sheibani; Ashrafi, Nahid; Chen, Huanyin On unit nil-clean rings. (English) Zbl 1412.16029 Mediterr. J. Math. 16, No. 4, Paper No. 100, 9 p. (2019). MSC: 16U99 16U80 PDF BibTeX XML Cite \textit{M. S. Abdolyousefi} et al., Mediterr. J. Math. 16, No. 4, Paper No. 100, 9 p. (2019; Zbl 1412.16029) Full Text: DOI OpenURL
Moussavi, Ahmad; Paykan, Kamal Triangular matrix representation of differential polynomial rings. (English) Zbl 1450.16035 Bol. Soc. Mat. Mex., III. Ser. 25, No. 1, 87-96 (2019). MSC: 16W60 16W70 16S36 16P40 PDF BibTeX XML Cite \textit{A. Moussavi} and \textit{K. Paykan}, Bol. Soc. Mat. Mex., III. Ser. 25, No. 1, 87--96 (2019; Zbl 1450.16035) Full Text: DOI OpenURL
Izhakian, Zur Tropical plactic algebra, the cloaktic monoid, and semigroup representations. (English) Zbl 1468.06034 J. Algebra 524, 290-366 (2019). MSC: 06F05 06D05 20M13 20M30 47D03 05C25 16Y60 PDF BibTeX XML Cite \textit{Z. Izhakian}, J. Algebra 524, 290--366 (2019; Zbl 1468.06034) Full Text: DOI arXiv OpenURL
Cheraghpour, Hassan; Ghosseiri, Nader M. On the idempotents, nilpotents, units and zero-divisors of finite rings. (English) Zbl 1403.16016 Linear Multilinear Algebra 67, No. 2, 327-336 (2019). MSC: 16P10 16S50 16U99 PDF BibTeX XML Cite \textit{H. Cheraghpour} and \textit{N. M. Ghosseiri}, Linear Multilinear Algebra 67, No. 2, 327--336 (2019; Zbl 1403.16016) Full Text: DOI OpenURL
Tang, Gaohua; Zhou, Yiqiang; Su, Huadong Matrices over a commutative ring as sums of three idempotents or three involutions. (English) Zbl 1403.16030 Linear Multilinear Algebra 67, No. 2, 267-277 (2019). MSC: 16S50 16U99 PDF BibTeX XML Cite \textit{G. Tang} et al., Linear Multilinear Algebra 67, No. 2, 267--277 (2019; Zbl 1403.16030) Full Text: DOI arXiv OpenURL
Valverde-Albacete, Francisco J.; Peláez-Moreno, Carmen \(\mathcal{K}\)-formal concept analysis as linear algebra over idempotent semifields. (English) Zbl 1441.68249 Inf. Sci. 467, 579-603 (2018). MSC: 68T30 12K10 15A99 PDF BibTeX XML Cite \textit{F. J. Valverde-Albacete} and \textit{C. Peláez-Moreno}, Inf. Sci. 467, 579--603 (2018; Zbl 1441.68249) Full Text: DOI OpenURL
de la Puente, Maria J.; Claveria, Pedro L. Volume of alcoved polyhedra and Mahler conjecture. (English) Zbl 1467.52020 Arreche, Carlos (ed.), Proceedings of the 43rd international symposium on symbolic and algebraic computation, ISSAC 2018, New York, NY, USA, July 16–19, 2018. New York, NY: Association for Computing Machinery (ACM). 319-326 (2018). MSC: 52B12 68U05 68W30 90C22 PDF BibTeX XML Cite \textit{M. J. de la Puente} and \textit{P. L. Claveria}, in: Proceedings of the 43rd international symposium on symbolic and algebraic computation, ISSAC 2018, New York, NY, USA, July 16--19, 2018. New York, NY: Association for Computing Machinery (ACM). 319--326 (2018; Zbl 1467.52020) Full Text: DOI OpenURL
Kumar, Ashim; Cardoso, João R. Iterative methods for finding commuting solutions of the Yang-Baxter-like matrix equation. (English) Zbl 1427.65059 Appl. Math. Comput. 333, 246-253 (2018). MSC: 65F45 15A24 PDF BibTeX XML Cite \textit{A. Kumar} and \textit{J. R. Cardoso}, Appl. Math. Comput. 333, 246--253 (2018; Zbl 1427.65059) Full Text: DOI OpenURL
Rajeswari, Kota Nagalakshmi; Gupta, Umesh Characterization of \(2\times 2\) nil-clean matrices over integral domains. (English) Zbl 1425.16027 J. Algebra Comb. Discrete Struct. Appl. 5, No. 3, 117-127 (2018). MSC: 16U99 16S50 PDF BibTeX XML Cite \textit{K. N. Rajeswari} and \textit{U. Gupta}, J. Algebra Comb. Discrete Struct. Appl. 5, No. 3, 117--127 (2018; Zbl 1425.16027) OpenURL
De Seguins Pazzis, Clément Sums of quadratic endomorphisms of an infinite-dimensional vector space. (English) Zbl 1442.15002 Proc. Edinb. Math. Soc., II. Ser. 61, No. 2, 437-447 (2018). MSC: 15A03 15A04 15A24 08A35 16W20 PDF BibTeX XML Cite \textit{C. De Seguins Pazzis}, Proc. Edinb. Math. Soc., II. Ser. 61, No. 2, 437--447 (2018; Zbl 1442.15002) Full Text: DOI arXiv OpenURL
Cao, Qiuhong; Xie, Tao; Zuo, Kezheng Discussions on the group inverses of combinations of two idempotent matrices. (Chinese. English summary) Zbl 1424.15006 J. Wuhan Univ., Nat. Sci. Ed. 64, No. 3, 262-268 (2018). MSC: 15A09 15A03 PDF BibTeX XML Cite \textit{Q. Cao} et al., J. Wuhan Univ., Nat. Sci. Ed. 64, No. 3, 262--268 (2018; Zbl 1424.15006) Full Text: DOI OpenURL
Yang, Lin Regular \(\mathscr{D}\)-classes of the semigroup of \(n\times n\) tropical matrices. (English) Zbl 1424.15054 Turk. J. Math. 42, No. 4, 2061-2070 (2018). MSC: 15B33 15A24 15A21 PDF BibTeX XML Cite \textit{L. Yang}, Turk. J. Math. 42, No. 4, 2061--2070 (2018; Zbl 1424.15054) Full Text: DOI OpenURL
Cao, Qiuhong; Xie, Tao; Zuo, Kezheng The Drazin inverse of combinations of two idempotent matrices. (Chinese. English summary) Zbl 1424.15005 Math. Pract. Theory 48, No. 9, 302-307 (2018). MSC: 15A09 PDF BibTeX XML Cite \textit{Q. Cao} et al., Math. Pract. Theory 48, No. 9, 302--307 (2018; Zbl 1424.15005) OpenURL
Cao, Qiuhong; Xie, Tao; Zuo, Kezheng Drazin inverse of linear combination of two idempotent matrices. (Chinese. English summary) Zbl 1424.15004 J. Cent. China Norm. Univ., Nat. Sci. 52, No. 4, 458-460, 478 (2018). MSC: 15A09 PDF BibTeX XML Cite \textit{Q. Cao} et al., J. Cent. China Norm. Univ., Nat. Sci. 52, No. 4, 458--460, 478 (2018; Zbl 1424.15004) Full Text: DOI OpenURL
Khurana, Dinesh; Lam, T. Y. Commutators and anti-commutators of idempotents in rings. (English) Zbl 1433.16043 López-Permouth, Sergio R. (ed.) et al., Advances in rings and modules. Dedicated to Bruno J. Müller. Providence, RI: American Mathematical Society (AMS). Contemp. Math. 715, 205-224 (2018). MSC: 16U40 12E15 15B33 15B36 16E50 16N40 PDF BibTeX XML Cite \textit{D. Khurana} and \textit{T. Y. Lam}, Contemp. Math. 715, 205--224 (2018; Zbl 1433.16043) Full Text: DOI arXiv OpenURL
Krivulin, N. K.; Romanova, E. Yu. Rank-one approximation of positive matrices based on methods of tropical mathematics. (English. Russian original) Zbl 1401.90263 Vestn. St. Petersbg. Univ., Math. 51, No. 2, 133-143 (2018); translation from Vestn. St-Peterbg. Univ., Ser. I, Mat. Mekh. Astron. 5(63), No. 2, 216-230 (2018). MSC: 90C48 PDF BibTeX XML Cite \textit{N. K. Krivulin} and \textit{E. Yu. Romanova}, Vestn. St. Petersbg. Univ., Math. 51, No. 2, 133--143 (2018; Zbl 1401.90263); translation from Vestn. St-Peterbg. Univ., Ser. I, Mat. Mekh. Astron. 5(63), No. 2, 216--230 (2018) Full Text: DOI OpenURL