Chugunov, V. N.; Ikramov, Kh. D. On a particular solution of the \(\sigma \)-commutation problem \(( \sigma \ne 0, \pm 1)\) for Toeplitz and Hankel matrices. (English. Russian original) Zbl 07786497 Comput. Math. Math. Phys. 63, No. 11, 2038-2049 (2023); translation from Zh. Vychisl. Mat. Mat. 63, No. 11, 1817-1828 (2023). MSC: 15B05 15A24 PDFBibTeX XMLCite \textit{V. N. Chugunov} and \textit{Kh. D. Ikramov}, Comput. Math. Math. Phys. 63, No. 11, 2038--2049 (2023; Zbl 07786497); translation from Zh. Vychisl. Mat. Mat. 63, No. 11, 1817--1828 (2023) Full Text: DOI
Ikramov, Kh. D. On matrices having \(J_m(1)\oplus J_m(1)\) as their cosquare. (English. Russian original) Zbl 1475.15014 Math. Notes 110, No. 1, 72-79 (2021); translation from Mat. Zametki 110, No. 1, 65-74 (2021). Reviewer: John D. Dixon (Ottawa) MSC: 15A21 15A20 15A18 15A10 PDFBibTeX XMLCite \textit{Kh. D. Ikramov}, Math. Notes 110, No. 1, 72--79 (2021; Zbl 1475.15014); translation from Mat. Zametki 110, No. 1, 65--74 (2021) Full Text: DOI
Ikramov, Kh. D. Congruence criteria for normal and conjugate-normal matrices. (English. Russian original) Zbl 1448.15005 J. Math. Sci., New York 249, No. 2, 195-198 (2020); translation from Zap. Nauchn. Semin. POMI 482, 129-134 (2019). MSC: 15A04 15A21 PDFBibTeX XMLCite \textit{Kh. D. Ikramov}, J. Math. Sci., New York 249, No. 2, 195--198 (2020; Zbl 1448.15005); translation from Zap. Nauchn. Semin. POMI 482, 129--134 (2019) Full Text: DOI
Abdikalykov, A. K.; Ikramov, Kh. D. Similarity and consimilarity automorphisms of the space of Toeplitz matrices. (English. Russian original) Zbl 1426.15039 J. Math. Sci., New York 240, No. 6, 707-714 (2019); translation from Zap. Nauchn. Semin. POMI 472, 5-16 (2018). MSC: 15B05 PDFBibTeX XMLCite \textit{A. K. Abdikalykov} and \textit{Kh. D. Ikramov}, J. Math. Sci., New York 240, No. 6, 707--714 (2019; Zbl 1426.15039); translation from Zap. Nauchn. Semin. POMI 472, 5--16 (2018) Full Text: DOI
Ikramov, Kh. D. Non-Hermitian matrices of even order and neutral subspaces of half the dimension. (English. Russian original) Zbl 1361.15017 Math. Notes 100, No. 5, 720-723 (2016); translation from Mat. Zametki 100, No. 5, 739-743 (2016). MSC: 15A24 PDFBibTeX XMLCite \textit{Kh. D. Ikramov}, Math. Notes 100, No. 5, 720--723 (2016; Zbl 1361.15017); translation from Mat. Zametki 100, No. 5, 739--743 (2016) Full Text: DOI
Ikramov, Kh. D. An analysis of the matrix equation \(AX + =\overline{X}B = C\). (English. Russian original) Zbl 1361.15016 Comput. Math. Math. Phys. 56, No. 9, 1536-1539 (2016); translation from Zh. Vychisl. Mat. Mat. Fiz. 56, No. 9, 1556-1559 (2016). MSC: 15A24 65F30 15B57 PDFBibTeX XMLCite \textit{Kh. D. Ikramov}, Comput. Math. Math. Phys. 56, No. 9, 1536--1539 (2016; Zbl 1361.15016); translation from Zh. Vychisl. Mat. Mat. Fiz. 56, No. 9, 1556--1559 (2016) Full Text: DOI
Ikramov, Kh. D. Neutral subspaces of complex matrices. (English. Russian original) Zbl 1347.15020 J. Math. Sci., New York 216, No. 6, 783-786 (2016); translation from Zap. Nauchn. Semin. POMI 439, 93-98 (2015). MSC: 15A24 15A03 PDFBibTeX XMLCite \textit{Kh. D. Ikramov}, J. Math. Sci., New York 216, No. 6, 783--786 (2016; Zbl 1347.15020); translation from Zap. Nauchn. Semin. POMI 439, 93--98 (2015) Full Text: DOI
Abdikalykov, A. K.; Ikramov, Kh. D.; Chugunov, Vadim N. A duality relation for unitary automorphisms in the spaces of Toeplitz and Hankel matrices. (English. Russian original) Zbl 1341.15021 Math. Notes 99, No. 1, 3-8 (2016); translation from Mat. Zametki 99, No. 1, 3-10 (2016). MSC: 15B05 15A30 15B10 PDFBibTeX XMLCite \textit{A. K. Abdikalykov} et al., Math. Notes 99, No. 1, 3--8 (2016; Zbl 1341.15021); translation from Mat. Zametki 99, No. 1, 3--10 (2016) Full Text: DOI
Abdikalykov, A. K.; Chugunov, V. N.; Ikramov, Kh. D. Unitary automorphisms of the space of \((T+H)\)-matrices of order four. (English. Russian original) Zbl 1334.15070 Mosc. Univ. Comput. Math. Cybern. 39, No. 4, 153-156 (2015); translation from Vestn. Mosk. Univ., Ser. XV 2015, No. 4, 3-6 (2015). MSC: 15B05 PDFBibTeX XMLCite \textit{A. K. Abdikalykov} et al., Mosc. Univ. Comput. Math. Cybern. 39, No. 4, 153--156 (2015; Zbl 1334.15070); translation from Vestn. Mosk. Univ., Ser. XV 2015, No. 4, 3--6 (2015) Full Text: DOI
Ikramov, Kh. D. Normality conditions for the matrix operator \(X\to AX+X^\ast B\). (English) Zbl 1329.15041 Calcolo 52, No. 4, 495-502 (2015). MSC: 15A24 15B57 PDFBibTeX XMLCite \textit{Kh. D. Ikramov}, Calcolo 52, No. 4, 495--502 (2015; Zbl 1329.15041) Full Text: DOI
Ikramov, Khakim D. Normality conditions for the BHH matrix operator. (English) Zbl 1322.15009 Linear Multilinear Algebra 63, No. 9, 1901-1908 (2015). MSC: 15A24 15B57 PDFBibTeX XMLCite \textit{K. D. Ikramov}, Linear Multilinear Algebra 63, No. 9, 1901--1908 (2015; Zbl 1322.15009) Full Text: DOI
Ikramov, Kh. D.; Chugunov, V. N. How to characterize \((T+H)\)-matrices and \((T+H)\)-circulants. (English. Russian original) Zbl 1318.15017 Comput. Math. Math. Phys. 55, No. 2, 175-178 (2015); translation from Zh. Vychisl. Mat. Mat. Fiz. 55, No. 2, 185-188 (2015). MSC: 15B05 PDFBibTeX XMLCite \textit{Kh. D. Ikramov} and \textit{V. N. Chugunov}, Comput. Math. Math. Phys. 55, No. 2, 175--178 (2015; Zbl 1318.15017); translation from Zh. Vychisl. Mat. Mat. Fiz. 55, No. 2, 185--188 (2015) Full Text: DOI
Ikramov, Kh. D. Normality conditions for linear matrix operators of the Stein type. (English. Russian original) Zbl 1318.15008 Dokl. Math. 91, No. 1, 50-52 (2015); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 460, No. 3, 269-271 (2015). MSC: 15A24 15B57 PDFBibTeX XMLCite \textit{Kh. D. Ikramov}, Dokl. Math. 91, No. 1, 50--52 (2015; Zbl 1318.15008); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 460, No. 3, 269--271 (2015) Full Text: DOI
Abdikalykov, A. K.; Chugunov, V. N.; Ikramov, Kh. D. Unitary automorphisms of the space of Toeplitz-plus-Hankel matrices. (English) Zbl 1326.15042 Spec. Matrices 3, 58-68 (2015). MSC: 15B05 15A60 PDFBibTeX XMLCite \textit{A. K. Abdikalykov} et al., Spec. Matrices 3, 58--68 (2015; Zbl 1326.15042) Full Text: DOI
Abdikalykov, A. K.; Ikramov, Kh. D.; Chugunov, V. N. Fast algorithms for calculating the eigenvalues of normal Hankel matrices. (English. Russian original) Zbl 1333.65036 Mosc. Univ. Comput. Math. Cybern. 38, No. 1, 1-7 (2014); translation from Vestn. Mosk. Univ., Ser. XV 2014, No. 1, 5-10 (2014). MSC: 65F15 15B05 PDFBibTeX XMLCite \textit{A. K. Abdikalykov} et al., Mosc. Univ. Comput. Math. Cybern. 38, No. 1, 1--7 (2014; Zbl 1333.65036); translation from Vestn. Mosk. Univ., Ser. XV 2014, No. 1, 5--10 (2014) Full Text: DOI
Vorontsov, Yu. O.; Ikramov, Kh. D. Numerical algorithm for solving quadratic matrix equations of a certain class. (English. Russian original) Zbl 1327.65088 Comput. Math. Math. Phys. 54, No. 11, 1643-1646 (2014); translation from Zh. Vychisl. Mat. Mat. Fiz. 54, No. 11, 1707-1710 (2014). MSC: 65F30 15A24 PDFBibTeX XMLCite \textit{Yu. O. Vorontsov} and \textit{Kh. D. Ikramov}, Comput. Math. Math. Phys. 54, No. 11, 1643--1646 (2014; Zbl 1327.65088); translation from Zh. Vychisl. Mat. Mat. Fiz. 54, No. 11, 1707--1710 (2014) Full Text: DOI
Ikramov, Kh. D. Normality conditions for matrix equations of the Sylvester type. (English. Russian original) Zbl 1318.15007 Dokl. Math. 90, No. 3, 727-729 (2014); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 459, No. 4, 403-405 (2014). MSC: 15A24 15B57 PDFBibTeX XMLCite \textit{Kh. D. Ikramov}, Dokl. Math. 90, No. 3, 727--729 (2014; Zbl 1318.15007); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 459, No. 4, 403--405 (2014) Full Text: DOI
Ikramov, Kh. D. Unitary automorphisms of the space of Hankel matrices. (English. Russian original) Zbl 1315.15029 Math. Notes 96, No. 6, 678-685 (2014); translation from Mat. Zametki 96, No. 5, 687-696 (2014). MSC: 15B05 15A21 PDFBibTeX XMLCite \textit{Kh. D. Ikramov}, Math. Notes 96, No. 6, 678--685 (2014; Zbl 1315.15029); translation from Mat. Zametki 96, No. 5, 687--696 (2014) Full Text: DOI
Ikramov, Kh. D.; Vorontsov, Yu. O. Numerical solution of Sylvester matrix equations in the self-adjoint case. (English. Russian original) Zbl 1311.65045 Mosc. Univ. Comput. Math. Cybern. 38, No. 2, 33-36 (2014); translation from Vestn. Mosk. Univ., Ser. XV 2014, No. 2, 7-9 (2014). MSC: 65F30 15A24 PDFBibTeX XMLCite \textit{Kh. D. Ikramov} and \textit{Yu. O. Vorontsov}, Mosc. Univ. Comput. Math. Cybern. 38, No. 2, 33--36 (2014; Zbl 1311.65045); translation from Vestn. Mosk. Univ., Ser. XV 2014, No. 2, 7--9 (2014) Full Text: DOI
Vorontsov, Yu. O.; Ikramov, Kh. D. Numerical algorithm for solving sesquilinear matrix equations of a certain class. (Russian, English) Zbl 1313.65099 Zh. Vychisl. Mat. Mat. Fiz. 54, No. 6, 901-904 (2014); translation in Comput. Math. Math. Phys. 54, No. 6, 915-918 (2014). MSC: 65F30 15A24 PDFBibTeX XMLCite \textit{Yu. O. Vorontsov} and \textit{Kh. D. Ikramov}, Zh. Vychisl. Mat. Mat. Fiz. 54, No. 6, 901--904 (2014; Zbl 1313.65099); translation in Comput. Math. Math. Phys. 54, No. 6, 915--918 (2014) Full Text: DOI
Vorontsov, Yu. O.; Ikramov, Kh. D. Numerical solution of matrix equations of the Stein type in the self-adjoint case. (Russian, English) Zbl 1313.65098 Zh. Vychisl. Mat. Mat. Fiz. 54, No. 5, 723- 727 (2014); translation in Comput. Math. Math. Phys. 54, No. 5, 745-749 (2014). MSC: 65F30 15A24 PDFBibTeX XMLCite \textit{Yu. O. Vorontsov} and \textit{Kh. D. Ikramov}, Zh. Vychisl. Mat. Mat. Fiz. 54, No. 5, 723- 727 (2014; Zbl 1313.65098); translation in Comput. Math. Math. Phys. 54, No. 5, 745--749 (2014) Full Text: DOI
Vorontsov, Yu. O.; Ikramov, Kh. D. Numerical solution of the matrix equation \(X-A\bar X B = C\) in the self-adjoint case. (Russian, English) Zbl 1313.65097 Zh. Vychisl. Mat. Mat. Fiz. 54, No. 3, 371-374 (2014); translation in Comput. Math. Math. Phys. 54, No. 3, 379-381 (2014). MSC: 65F30 15A24 PDFBibTeX XMLCite \textit{Yu. O. Vorontsov} and \textit{Kh. D. Ikramov}, Zh. Vychisl. Mat. Mat. Fiz. 54, No. 3, 371--374 (2014; Zbl 1313.65097); translation in Comput. Math. Math. Phys. 54, No. 3, 379--381 (2014) Full Text: DOI Link
Vorontsov, Yu. O.; Ikramov, Kh. D. Numerical solution of the matrix equations \(AX + X ^TB = C\) and \(AX + X*B = C\) in the self-adjoint case. (Russian, English) Zbl 1313.65096 Zh. Vychisl. Mat. Mat. Fiz. 54, No. 2, 179- 182 (2014); translation in Comput. Math. Math. Phys. 54, No. 2, 191-194 (2014). MSC: 65F30 15A24 PDFBibTeX XMLCite \textit{Yu. O. Vorontsov} and \textit{Kh. D. Ikramov}, Zh. Vychisl. Mat. Mat. Fiz. 54, No. 2, 179- 182 (2014; Zbl 1313.65096); translation in Comput. Math. Math. Phys. 54, No. 2, 191--194 (2014) Full Text: DOI Link
Ikramov, Khakim D. An economical algorithm for calculating the coneigenvalues of complex matrices that are self-adjoint with respect to the symplectic metric. (English. Russian original) Zbl 1297.65039 Dokl. Math. 88, No. 3, 734-736 (2013); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 453, No. 6, 603-605 (2013). MSC: 65F15 PDFBibTeX XMLCite \textit{K. D. Ikramov}, Dokl. Math. 88, No. 3, 734--736 (2013; Zbl 1297.65039); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 453, No. 6, 603--605 (2013) Full Text: DOI
Vorontsov, Yu. O.; Ikramov, Kh. D. Numerical algorithms for solving matrix equations \(AX + BX^T = C\) and \(AX + BX^\ast = C\). (Russian, English) Zbl 1299.65083 Zh. Vychisl. Mat. Mat. Fiz. 53, No. 6, 843-852 (2013); translation in Comput. Math. Math. Phys. 53, No. 6, 667-676 (2013). MSC: 65F30 15A24 PDFBibTeX XMLCite \textit{Yu. O. Vorontsov} and \textit{Kh. D. Ikramov}, Zh. Vychisl. Mat. Mat. Fiz. 53, No. 6, 843--852 (2013; Zbl 1299.65083); translation in Comput. Math. Math. Phys. 53, No. 6, 667--676 (2013) Full Text: DOI
Ikramov, Kh. D. Unitary congruence to a conjugate-normal matrix. (English. Russian original) Zbl 1271.15028 J. Math. Sci., New York 191, No. 1, 72-74 (2013); translation from Zap. Nauchn. Semin. POMI 405, 133-137 (2012). MSC: 15B57 15A21 65F30 PDFBibTeX XMLCite \textit{Kh. D. Ikramov}, J. Math. Sci., New York 191, No. 1, 72--74 (2013; Zbl 1271.15028); translation from Zap. Nauchn. Semin. POMI 405, 133--137 (2012) Full Text: DOI
Vorontsov, Yu. O.; Ikramov, Kh. D. Numerical solution of matrix equations of the form \(X + AX ^TB = C\). (Russian, English) Zbl 1274.65127 Zh. Vychisl. Mat. Mat. Fiz. 53, No. 3, 331-335 (2013); translation in Comput. Math. Math. Phys. 53, No. 3, 253-257 (2013). MSC: 65F30 15A24 PDFBibTeX XMLCite \textit{Yu. O. Vorontsov} and \textit{Kh. D. Ikramov}, Zh. Vychisl. Mat. Mat. Fiz. 53, No. 3, 331--335 (2013; Zbl 1274.65127); translation in Comput. Math. Math. Phys. 53, No. 3, 253--257 (2013) Full Text: DOI Link
Ikramov, Kh. D. Hamiltonian and skew-Hamiltonian solutions to the matrix equation \(X\bar X=A\). (English. Russian original) Zbl 1269.15014 Dokl. Math. 87, No. 1, 28-30 (2013); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 448, No. 2, 133-135 (2013). MSC: 15A24 15B57 PDFBibTeX XMLCite \textit{Kh. D. Ikramov}, Dokl. Math. 87, No. 1, 28--30 (2013; Zbl 1269.15014); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 448, No. 2, 133--135 (2013) Full Text: DOI
Ikramov, Khakim D.; Vorontsov, Yu. O. The matrix equations \(AX+BX^T=C\) and \(AX+BX^\ast=C\). (English. Russian original) Zbl 1269.15015 Dokl. Math. 87, No. 2, 211-213 (2013); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk, Vol. 449, No. 5, 513-515 (2013). MSC: 15A24 65F30 15A22 15A18 PDFBibTeX XMLCite \textit{K. D. Ikramov} and \textit{Yu. O. Vorontsov}, Dokl. Math. 87, No. 2, 211--213 (2013; Zbl 1269.15015); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk, Vol. 449, No. 5, 513--515 (2013) Full Text: DOI
Ikramov, Kh. D.; Abdikalykov, A. K. On unitary transposable matrices of order three. (English. Russian original) Zbl 1283.15035 Math. Notes 91, No. 4, 528-534 (2012); translation from Mat. Zametki 91, No. 4, 563-570 (2012). MSC: 15A21 PDFBibTeX XMLCite \textit{Kh. D. Ikramov} and \textit{A. K. Abdikalykov}, Math. Notes 91, No. 4, 528--534 (2012; Zbl 1283.15035); translation from Mat. Zametki 91, No. 4, 563--570 (2012) Full Text: DOI
Ikramov, Kh. D. Effective algorithms for decomplexifying a matrix by unitary similarities or congruences. (English. Russian original) Zbl 1266.15019 Math. Notes 92, No. 6, 767-772 (2012); translation from Mat. Zametki 92, No. 6, 856-863 (2012). Reviewer: Chen Sheng (Harbin) MSC: 15A21 65F30 PDFBibTeX XMLCite \textit{Kh. D. Ikramov}, Math. Notes 92, No. 6, 767--772 (2012; Zbl 1266.15019); translation from Mat. Zametki 92, No. 6, 856--863 (2012) Full Text: DOI
Ikramov, Kh. D. How to distinguish between the latently real matrices and the block quaternions? (English. Russian original) Zbl 1256.15008 J. Math. Sci., New York 182, No. 6, 779-781 (2012); translation from Zap. Nauchn. Semin. POMI 395, 61-66 (2011). MSC: 15B33 PDFBibTeX XMLCite \textit{Kh. D. Ikramov}, J. Math. Sci., New York 182, No. 6, 779--781 (2012; Zbl 1256.15008); translation from Zap. Nauchn. Semin. POMI 395, 61--66 (2011) Full Text: DOI
Al’pin, Yu. A.; Ikramov, Kh. D. A criterion for unitary congruence between complex matrices. (English. Russian original) Zbl 1260.15011 J. Math. Sci., New York 182, No. 6, 748-753 (2012); translation from Zap. Nauchn. Semin. POMI 395, 9-19 (2011). Reviewer: Mihail Voicu (Iaşi) MSC: 15A21 15A15 PDFBibTeX XMLCite \textit{Yu. A. Al'pin} and \textit{Kh. D. Ikramov}, J. Math. Sci., New York 182, No. 6, 748--753 (2012; Zbl 1260.15011); translation from Zap. Nauchn. Semin. POMI 395, 9--19 (2011) Full Text: DOI
Abdikalykov, A. K.; Ikramov, Kh. D. Simultaneous decomplexification of a pair of complex matrices via a unitary similarity transformation. (English. Russian original) Zbl 1256.15006 J. Math. Sci., New York 182, No. 6, 745-747 (2012); translation from Zap. Nauchn. Semin. POMI 395, 5-8 (2011). MSC: 15A21 PDFBibTeX XMLCite \textit{A. K. Abdikalykov} and \textit{Kh. D. Ikramov}, J. Math. Sci., New York 182, No. 6, 745--747 (2012; Zbl 1256.15006); translation from Zap. Nauchn. Semin. POMI 395, 5--8 (2011) Full Text: DOI
Ikramov, Kh. D. Equations of the form \(X\bar X = A\) with skew-Hamiltonian matrices \(A\). (English. Russian original) Zbl 1263.15034 Dokl. Math. 85, No. 3, 388-390 (2012); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 444, No. 5, 477-479 (2012). Reviewer: Frank Uhlig (Auburn) MSC: 15B57 15A24 15A21 PDFBibTeX XMLCite \textit{Kh. D. Ikramov}, Dokl. Math. 85, No. 3, 388--390 (2012; Zbl 1263.15034); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 444, No. 5, 477--479 (2012) Full Text: DOI
Ikramov, Khakim D.; Vorontsov, Yu. O. The matrix equation \(X + AX^TB = C\): Conditions for unique solvability and a numerical algorithm for its solution. (English. Russian original) Zbl 1255.15021 Dokl. Math. 85, No. 2, 265-267 (2012); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 443, No. 5, 545-548 (2012). MSC: 15A24 65F30 PDFBibTeX XMLCite \textit{K. D. Ikramov} and \textit{Yu. O. Vorontsov}, Dokl. Math. 85, No. 2, 265--267 (2012; Zbl 1255.15021); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 443, No. 5, 545--548 (2012) Full Text: DOI
Ikramov, Kh. D. Unitary congruence of mutually transposed matrices. (English. Russian original) Zbl 1246.15017 Dokl. Math. 85, No. 1, 5-7 (2012); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 442, No. 1, 11-13 (2012). Reviewer: Juan Ramon Torregrosa Sanchez (Valencia) MSC: 15A24 15A18 15A21 PDFBibTeX XMLCite \textit{Kh. D. Ikramov}, Dokl. Math. 85, No. 1, 5--7 (2012; Zbl 1246.15017); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 442, No. 1, 11--13 (2012) Full Text: DOI
Ikramov, Kh. D. Simultaneous decomplexification of a pair of complex matrices by a unitary congruence transformation. (English. Russian original) Zbl 1246.15014 Dokl. Math. 84, No. 3, 767-769 (2011); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 441, No. 1, 7-9 (2011). Reviewer: Rabe von Randow (Bonn) MSC: 15A21 PDFBibTeX XMLCite \textit{Kh. D. Ikramov}, Dokl. Math. 84, No. 3, 767--769 (2011; Zbl 1246.15014); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 441, No. 1, 7--9 (2011) Full Text: DOI
Ikramov, Kh. D.; Vorontsov, Yu. O. On the unique solvability of the matrix equation \(AX + X^{T}B = C\) in the singular case. (English. Russian original) Zbl 1390.15051 Dokl. Math. 83, No. 3, 380-383 (2011); translation from Dokl. Akad. Nauk 438, No. 5, 599-602 (2011). MSC: 15A24 PDFBibTeX XMLCite \textit{Kh. D. Ikramov} and \textit{Yu. O. Vorontsov}, Dokl. Math. 83, No. 3, 380--383 (2011; Zbl 1390.15051); translation from Dokl. Akad. Nauk 438, No. 5, 599--602 (2011) Full Text: DOI
Ikramov, Kh. D. On complex matrices that are unitarily similar to real matrices. (English. Russian original) Zbl 1275.15006 Math. Notes 87, No. 6, 821-827 (2010); translation from Mat. Zametki 87, No. 6, 841-848 (2010). MSC: 15A21 15B33 PDFBibTeX XMLCite \textit{Kh. D. Ikramov}, Math. Notes 87, No. 6, 821--827 (2010; Zbl 1275.15006); translation from Mat. Zametki 87, No. 6, 841--848 (2010) Full Text: DOI
Ikramov, Kh. D. Unitary congruence classes of 2-by-2 complex matrices. (English. Russian original) Zbl 1203.15008 Dokl. Math. 81, No. 2, 171-175 (2010); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 431, No. 1, 7-11 (2010). MSC: 15A21 PDFBibTeX XMLCite \textit{Kh. D. Ikramov}, Dokl. Math. 81, No. 2, 171--175 (2010; Zbl 1203.15008); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 431, No. 1, 7--11 (2010) Full Text: DOI
Ikramov, Kh. D. Constructive sufficient conditions for the existence of a unitary similarity transformation that converts a given complex matrix into a real one. (English. Russian original) Zbl 1201.15004 Dokl. Math. 82, No. 1, 563-565 (2010); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 433, No. 3, 305-308 (2010). MSC: 15A21 PDFBibTeX XMLCite \textit{Kh. D. Ikramov}, Dokl. Math. 82, No. 1, 563--565 (2010; Zbl 1201.15004); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 433, No. 3, 305--308 (2010) Full Text: DOI
Chugunov, V. N.; Ikramov, Kh. D. A complete solution of the normal Hankel problem. (English) Zbl 1194.15027 Linear Algebra Appl. 432, No. 12, 3210-3230 (2010). Reviewer: John D. Dixon (Ottawa) MSC: 15B05 15A21 PDFBibTeX XMLCite \textit{V. N. Chugunov} and \textit{Kh. D. Ikramov}, Linear Algebra Appl. 432, No. 12, 3210--3230 (2010; Zbl 1194.15027) Full Text: DOI
Ikramov, Kh. D. Equality conditions for the singular values of \(3 \times 3\) matrices with one-point spectrum. (English) Zbl 1118.15008 Math. Notes 80, No. 2, 183-187 (2006); translation from Mat. Zametki 80, No. 2, 187-192 (2006). Reviewer: John D. Dixon (Ottawa) MSC: 15A18 15B57 PDFBibTeX XMLCite \textit{Kh. D. Ikramov}, Math. Notes 80, No. 2, 183--187 (2006; Zbl 1118.15008); translation from Mat. Zametki 80, No. 2, 187--192 (2006) Full Text: DOI
George, A.; Ikramov, Kh. D. On the properties of accretive-dissipative matrices. (English) Zbl 1079.15021 Math. Notes 77, No. 6, 767-776 (2005); translation from Mat. Zametki 77, No. 6, 832-843 (2005). Reviewer: Václav Burjan (Praha) MSC: 15B57 47B44 15A18 65F05 PDFBibTeX XMLCite \textit{A. George} and \textit{Kh. D. Ikramov}, Math. Notes 77, No. 6, 767--776 (2005; Zbl 1079.15021); translation from Mat. Zametki 77, No. 6, 832--843 (2005) Full Text: DOI