Edit Profile (opens in new tab) Ikramov, Saidkhakim Dododshanovich Co-Author Distance Author ID: ikramov.khakim-d Published as: Ikramov, Kh. D.; Ikramov, Khakim D.; Ikramov, H. D.; Ikramov, Kh.; Ikramov, K. D.; Ikramov, Kh. D; Ikramov, K. more...less External Links: MGP · Math-Net.Ru Documents Indexed: 457 Publications since 1967, including 7 Books 2 Contributions as Editor Co-Authors: 32 Co-Authors with 175 Joint Publications 405 Co-Co-Authors all top 5 Co-Authors 277 single-authored 48 Chugunov, Vadim N. 19 George, Alan 17 Abdikalykov, A. K. 17 Vorontsov, Yu. O. 13 Al’pin, Yurii A. 13 Nazari, Ali Mohamad 9 Savel’eva, N. V. 8 Dana, Mansour 8 Faßbender, Heike 8 Matinfar, Mashallah 6 Elsner, Ludwig F. 3 Chesnokov, Andrey A. 3 Kucherov, Andrey B. 3 Petri, N. V. 2 Buslenko, A. S. 2 Đoković, Dragomir Ž. 2 Dzhordzh, A. 2 Ibragimov, M. Yu. 2 Kushnereva, D. A. 2 Matushkina, E. V. 2 Savina, N. V. 2 Zajkova, E. A. 1 D’yakonov, Evgenii Georgievich 1 Gregory, Robert Todd 1 Horn, Roger Alan 1 Johnson, Charles Royal 1 Kamalvand, Ghasemi M. 1 Krishnamurthy, E.v. 1 Krivoshapova, A. N. 1 Nesterenko, Yuri R. 1 Sagitov, M. S. 1 Shikin, Eugene V. 1 Usov, V. A. 1 Van Barel, Marc 1 Voevodin, Valentin Vasil’evich 1 Zykov, A. G. all top 5 Serials 65 Zhurnal Vychislitel’noĭ Matematiki i Matematicheskoĭ Fiziki 60 Journal of Mathematical Sciences (New York) 59 Doklady Mathematics 57 Moscow University Computational Mathematics and Cybernetics 57 Computational Mathematics and Mathematical Physics 31 Mathematical Notes 25 Linear Algebra and its Applications 19 U.S.S.R. Computational Mathematics and Mathematical Physics 10 Zapiski Nauchnykh Seminarov POMI 10 Sibirskiĭ Zhurnal Vychislitel’noĭ Matematiki 7 SIAM Journal on Matrix Analysis and Applications 7 Vestnik Moskovskogo Universiteta. Seriya 15 4 Vychislitel’nye Protsessy i Sistemy 3 Linear and Multilinear Algebra 3 Calcolo 3 Journal of Soviet Mathematics 2 Moscow University Mathematics Bulletin 2 Programming and Computer Software 2 Numerical Linear Algebra with Applications 2 Itogi Nauki i Tekhniki. Seriya Matematicheskiĭ Analiz 1 Bulletin of the Australian Mathematical Society 1 Zeitschrift für Angewandte Mathematik und Mechanik (ZAMM) 1 Mathematics of Computation 1 BIT 1 Journal of Algebra 1 Computational Mathematics and Modeling 1 Vestnik Moskovskogo Universiteta. Seriya I. Matematika, Mekhanika 1 Russian Academy of Sciences. Doklady. Mathematics 1 Fundamental’naya i Prikladnaya Matematika 1 Special Matrices all top 5 Fields 379 Linear and multilinear algebra; matrix theory (15-XX) 180 Numerical analysis (65-XX) 13 Operator theory (47-XX) 13 Computer science (68-XX) 4 Functions of a complex variable (30-XX) 4 Operations research, mathematical programming (90-XX) 4 Systems theory; control (93-XX) 3 Functional analysis (46-XX) 2 Field theory and polynomials (12-XX) 2 Algebraic geometry (14-XX) 2 Group theory and generalizations (20-XX) 1 General and overarching topics; collections (00-XX) 1 Combinatorics (05-XX) 1 Number theory (11-XX) 1 Commutative algebra (13-XX) 1 Associative rings and algebras (16-XX) 1 Nonassociative rings and algebras (17-XX) 1 Real functions (26-XX) 1 Harmonic analysis on Euclidean spaces (42-XX) 1 Calculus of variations and optimal control; optimization (49-XX) 1 Geometry (51-XX) 1 Mechanics of deformable solids (74-XX) 1 Optics, electromagnetic theory (78-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 194 Publications have been cited 759 times in 487 Documents Cited by ▼ Year ▼ Normal matrices: an update. Zbl 0931.15019 Elsner, L.; Ikramov, Kh. D. 35 1998 Numerical solution of matrix equations. Orthogonalization methods. (Chislennoe reshenie matrichnykh uravnenij. Ortogonal’nye metody). Zbl 0578.65020 Ikramov, Kh. D. 34 1984 On the properties of accretive-dissipative matrices. Zbl 1079.15021 George, A.; Ikramov, Kh. D. 27 2005 On the growth factor in Gaussian elimination for generalized Higham matrices. Zbl 1071.65033 George, Alan; Ikramov, Khakim D.; Kucherov, Andrey B. 20 2002 On a condensed form for normal matrices under finite sequences of elementary unitary similarities. Zbl 0870.65034 Elsner, L.; Ikramov, Kh. D. 19 1997 Some observations on the Youla form and conjugate-normal matrices. Zbl 1126.15012 Faßbender, H.; Ikramov, Kh. D. 18 2007 Hamiltonian square roots of skew-Hamiltonian matrices revisited. Zbl 0978.15010 Ikramov, Khakim D. 17 2001 Matrix analysis. Transl. from the English by Kh. D. Ikramov, A. V. Knyazev and E. E. Tyrtyshnikov. Transl. ed. and with a foreword by Ikramov. (Матричный анализ.) Zbl 0734.15002 Horn, Roger A.; Johnson, Charles R. 17 1989 A criterion for the normality of a complex Toeplitz matrix. Zbl 1027.15501 Ikramov, Kh. D.; Chugunov, V. N. 15 1996 Common invariant subspaces of two matrices. Zbl 0940.65042 George, Alan; Ikramov, Khakim D. 14 1999 Conjugate-normal matrices: A survey. Zbl 1168.15020 Faßbender, H.; Ikramov, Kh. D. 14 2008 Invariance of the Brauer diagonal dominance in Gaussian elimination. Zbl 0723.65013 Ikramov, Kh. D. 13 1989 The asymmetric eigenvalue problem. Numerical methods. (Несимметричная проблема собственных значений. Численные методы.) Zbl 0752.65032 Ikramov, Kh. D. 13 1991 Conditionally definite matrices. Zbl 0954.65035 Ikramov, Kh. D.; Savel’eva, N. V. 12 2000 On a QR-like algorithm for some structured eigenvalue problems. Zbl 0837.65035 George, A.; Ikramov, Kh. D.; Matushkina, E. V.; Tang, W.-P. 12 1995 Inverse matrix eigenvalue problems. Zbl 0954.65032 Ikramov, Kh. D.; Chugunov, V. N. 10 2000 Computing matrix-vector products with centrosymmetric and centro-Hermitian matrices. Zbl 1016.65022 Fassbender, Heike; Ikramov, Khakim D. 9 2003 The matrix equation \(X + AX^TB = C\): Conditions for unique solvability and a numerical algorithm for its solution. Zbl 1255.15021 Ikramov, Khakim D.; Vorontsov, Yu. O. 9 2012 On the unitary similarity of matrix families. Zbl 1120.15303 Al’pin, Yu. A.; Ikramov, Kh. D. 8 2003 Reducibility theorems for pairs of matrices as rational criteria. Zbl 0959.15009 Al’pin, Yurii A.; Ikramov, Khakim D. 8 2000 Describing normal Toeplitz matrices. Zbl 0822.47029 Ikramov, Kh. D. 8 1994 A numerical algorithm for solving the matrix equation \(AX + X^TB = C\). Zbl 1249.65099 Vorontsov, Yu. O.; Ikramov, Kh. D. 8 2011 On a new class of normal Hankel matrices. Zbl 1322.15014 Ikramov, Kh. D.; Chugunov, V. N. 8 2007 On the congruent selection of Jordan blocks from a singular square matrix. Zbl 1413.15018 Ikramov, Kh. D. 8 2018 Solving the two-dimensional CIS problem by a rational algorithm. Zbl 0964.65040 Al’pin, Yurii A.; George, Alan; Ikramov, Khakim D. 7 2000 Some properties of symmetric quasi-definite matrices. Zbl 0960.65038 George, Alan; Ikramov, Kh.; Kucherov, A. B. 7 2000 On the codimension of the variety of symmetric matrices with multiple eigenvalues. Zbl 1081.15526 Dana, M.; Ikramov, Kh. D. 7 2005 Classification of normal Toeplitz matrices with real entries. Zbl 0842.15009 Ikramov, Kh. D. 7 1995 A criterion for unitary congruence between matrices. Zbl 1232.15012 Al’pin, Yu. A.; Ikramov, Kh. D. 7 2011 A square matrix is congruent to its transpose. Zbl 1016.15028 Đoković, Dragomir Ž.; Ikramov, Khakim D. 7 2002 Several observations on symplectic, Hamiltonian, and skew-Hamiltonian matrices. Zbl 1077.15010 Faßbender, Heike; Ikramov, Kh. D. 7 2005 Matrix pencils: Theory, applications, and numerical methods. Zbl 0783.15004 Ikramov, Kh. D. 7 1991 On a remarkable property of a matrix of Mark Kac. Zbl 1028.15005 Ikramov, Kh. D. 7 2002 Rational procedures in the problem of common invariant subspaces of two matrices. Zbl 1031.15029 Al’pin, Yu. A.; Ikramov, Kh. D. 7 2000 Conditions for unique solvability of the matrix equation \(AX + X^TB = C\). Zbl 1208.15013 Ikramov, Kh. D. 7 2010 On the skew-symmetric part of the product of Toeplitz matrices. Zbl 0919.15009 Ikramov, Kh. D.; Chugunov, V. N. 6 1998 On the distance to the closest matrix with triple zero eigenvalue. Zbl 1059.15032 Ikramov, Kh. D.; Nazari, A. M. 6 2003 A contribution to the normal Hankel problem. Zbl 1163.15029 Chugunov, V. N.; Ikramov, Kh. D. 6 2009 Determinantal inequalities for accretive-dissipative matrices. Zbl 1071.15021 Ikramov, Kh. D. 6 2002 On doubly symmetric tridiagonal forms for complex matrices and tridiagonal inverse eigenvalue problems. Zbl 0863.15003 George, A.; Ikramov, Kh.; Tang, W.-P.; Tchugunov, V. N. 6 1996 On the solvability of a certain class of quadratic matrix equations. Zbl 1301.15013 Ikramov, Kh. D. 6 2014 Unitary similarity of matrices with quadratic minimal polynomials. Zbl 1002.15012 George, Alan; Ikramov, Khakim D. 6 2002 Finite algorithms for verifying unitary similarity and unitary congruence for a pair of complex matrices. Zbl 1232.15014 Ikramov, Kh. D. 5 2011 On a description of normal Hankel matrices. Zbl 0940.47025 Ikramov, Kh. D. 5 1997 On the product of two skew-Hamiltonian or two skew-symmetric matrices. Zbl 1176.15048 Ikramov, Kh. D.; Fassbender, H. 5 2009 Unitary automorphisms of the space of Toeplitz matrices. Zbl 1306.15028 Ikramov, Kh. D. 5 2014 On complex matrices that are unitarily similar to real matrices. Zbl 1275.15006 Ikramov, Kh. D. 5 2010 Self-conjugacy conditions for matrix equations of the Stein type. Zbl 1278.15016 Ikramov, Kh. D. 5 2013 A note on an unusual type of polar decomposition. Zbl 1144.15007 Faßbender, H.; Ikramov, Kh. D. 4 2008 A note on complex matrices that are unitarily congruent to real matrices. Zbl 1192.15003 Ikramov, Khakim D. 4 2010 Computational aspects of the use of Malyshev’s formula. Zbl 1076.65036 Ikramov, Kh. D.; Nazari, A. M. 4 2004 On the unique solvability of the matrix equation \(AX + X^{T}B = C\) in the singular case. Zbl 1390.15051 Ikramov, Kh. D.; Vorontsov, Yu. O. 4 2011 A method of congruent type for linear systems with conjugate-normal coefficient matrices. Zbl 1199.65138 Kamalvand, Ghasemi M.; Ikramov, Kh. D. 4 2009 On normal matrices with normal principal submatrices. Zbl 0899.15014 Elsner, L.; Ikramov, Kh. D. 4 1995 Low-rank perturbations of normal and conjugate-normal matrices and their condensed forms under unitary similarities and congruences. Zbl 1228.15017 Kamalvand, M. Ghasemi; Ikramov, Kh. D. 4 2009 Gaussian elimination is stable for the inverse of a diagonally dominant matrix. Zbl 1050.65024 George, Alan; Ikramov, Khakim D. 4 2004 A minimal residual method for a special class of linear systems with normal matrices of coefficients. Zbl 1102.65033 Dana, M.; Zykov, A. G.; Ikramov, Kh. D. 4 2005 The Nekrasov property is hereditary for Gaussian elimination. Zbl 0873.65014 Ikramov, Kh. D.; Ibragimov, M. Yu. 4 1997 Takagi’s decomposition of a symmetric unitary matrix as a finite algorithm. Zbl 1249.15017 Ikramov, Kh. D. 4 2012 Unitary automorphisms of the space of Hankel matrices. Zbl 1315.15029 Ikramov, Kh. D. 4 2014 Permutability of Toeplitz and Hankel matrices. Zbl 1303.15037 Chugunov, V. N.; Ikramov, Kh. D. 4 2015 Conditions for unique solvability of the matrix equation \(AX+X^\ast B=C\). Zbl 1274.15033 Vorontsov, Yu. O.; Ikramov, Kh. D. 4 2012 Linear matrix equations of the Sylvester type in the self-conjugate case. Zbl 1278.15015 Ikramov, Kh. D. 4 2013 Sparse linear problems and the least squares method. Zbl 0638.65032 Ikramov, Kh. D. 3 1985 Some comments on the generalized Cholesky algorithm. Zbl 0783.65018 Ikramov, Kh. D. 3 1992 Checking the congruence between accretive matrices. Zbl 1376.65071 Ikramov, Kh. D. 3 2017 On matrices that admit unitary reduction to band form. Zbl 0940.15012 Ikramov, Kh. D.; Elsner, L. 3 1998 The canonical Schur form of a unitarily quasidiagonalizable matrix. Zbl 0944.15011 Ikramov, Kh. D. 3 1997 Unitary similarity of algebras generated by pairs of orthoprojectors. Zbl 1079.15505 Al’pin, Yu. A.; Ikramov, Kh. D. 3 2005 On the reduction of the normal Hankel problem to two particular cases. Zbl 1181.15036 Ikramov, Kh. D.; Chugunov, V. N. 3 2009 On a finite rational criterion for the irreducibility of a matrix. Zbl 1177.15014 Ikramov, Kh. D. 3 2007 On the inertia law for normal matrices. Zbl 1046.15006 Ikramov, Kh. D. 3 2001 Bounding the growth factor in Gaussian elimination for Buckley’s class of complex symmetric matrices. Zbl 1051.65020 Ikramov, Khakim D.; Kucherov, Andrey B. 3 2000 On the growth factor in Gaussian elimination for matrices with sharp angular field of values. Zbl 1168.65331 George, A.; Ikramov, K. D. 3 2004 Addendum: Is the polar decomposition finitely computable? Zbl 0870.65037 George, Alan; Ikramov, Kh. 3 1997 A simple proof of the generalized Schur inequality. Zbl 0798.15022 Ikramov, Khakim D. 3 1994 Normal matrices and an extension of Malyshev’s formula. Zbl 1059.15027 Ikramov, Kh. D.; Nazari, A. M. 3 2004 Unitary similarity automorphisms of the space of \(3 \times 3\) Toeplitz-plus-Hankel matrices. Zbl 1332.15029 Ikramov, Kh. D.; Abdikalykov, A. K.; Chugunov, V. N. 3 2015 Unitary congruence automorphisms of the space of Toeplitz matrices. Zbl 1312.15040 Abdikalykov, A. K.; Chugunov, V. N.; Ikramov, Kh. D. 3 2015 Numerical solution of matrix equations of the form \(X + AX ^TB = C\). Zbl 1274.65127 Vorontsov, Yu. O.; Ikramov, Kh. D. 3 2013 Self-conjugacy conditions for semilinear matrix equations. Zbl 1278.15014 Ikramov, Kh. D. 3 2013 On the symplectic eigenvalues of positive definite matrices. Zbl 1397.15007 Ikramov, Kh. D. 3 2018 On singular values and polar decomposition of an operator in bilinear metric space. Zbl 0646.15006 Ikramov, Kh. D. 2 1988 Algebraic properties of classes of concommuting and \(H\)-selfadjoint matrices. Zbl 0785.15013 Ikramov, Kh. D. 2 1992 Once again on the solution of systems of linear equations whose coefficient matrices are low-rank perturbations of Hermitian matrices. Zbl 1235.15004 Dana, M.; Ikramov, Kh. D. 2 2006 On pseudo-eigenvalues and singular numbers of a complex square matrix. Zbl 1119.15010 Ikramov, Kh. D. 2 2006 On condiagonalizable matrices. Zbl 1120.15010 Ikramov, Khakim D. 2 2007 On normal Hankel matrices of low orders. Zbl 1219.15013 Ikramov, Kh. D.; Chugunov, V. N. 2 2008 A complete solution of the normal Hankel problem. Zbl 1194.15027 Chugunov, V. N.; Ikramov, Kh. D. 2 2010 On simultaneous reduction of a pair of oblique projectors to block triangular form. Zbl 0949.15015 Ikramov, Kh. D. 2 1998 On computer algebra procedures for a linear least squares problem with linear constraints. Zbl 1105.49039 Ikramov, Kh. D.; Matin far, M. 2 2004 On computer-algebra procedures for linear least squares problems with linear inequality constraints. Zbl 1094.68126 Ikramov, Kh. D.; Matin far, M. 2 2004 A finite procedure for the tridiagonalization of a general matrix. Zbl 0823.65025 George, A.; Ikramov, K.; Krivoshapova, A. N.; Tang, W.-P. 2 1995 Is the polar decomposition finitely computable? Zbl 0853.65046 George, Alan; Ikramov, Kh. 2 1996 Low-rank perturbations of symmetric matrices and their condensed forms under unitary congruences. Zbl 1199.15104 Kamalvand, M. G.; Ikramov, Kh. D. 2 2009 Theorems of the Hoffman-Wielandt type for the coneigenvalues of complex matrices. Zbl 1189.15021 Ikramov, Kh. D.; Nesterenko, Yu. R. 2 2009 On condensed forms for partially commuting matrices. Zbl 0956.15010 Alpin, Yu. A.; Elsner, L.; Ikramov, Kh. D. 2 2000 On a quasidiagonalizability criterion for real matrices. Zbl 0985.15008 Ikramov, Kh. D. 2 2000 On the unitary similarity of mutually transposed matrices. Zbl 1046.15010 Ikramov, Kh. D. 2 2001 Justification of a Malyshev-type formula in the nonnormal case. Zbl 1087.15026 Ikramov, Kh. D.; Nazari, A. M. 2 2005 An algorithm verifying the congruence of complex matrices whose cosquares have eigenvalues of modulus one. Zbl 1464.15020 Ikramov, Kh. D.; Usov, V. A. 2 2020 An attempt of spectral theory for \(\ast \)-congruence transformations. Zbl 1450.15012 Ikramov, Kh. D. 1 2020 Square roots of Hermitian matrices and a rational algorithm for checking their congruence. Zbl 1428.15036 Ikramov, Kh. D. 1 2019 On the congruent selection of Jordan blocks from a singular square matrix. Zbl 1413.15018 Ikramov, Kh. D. 8 2018 On the symplectic eigenvalues of positive definite matrices. Zbl 1397.15007 Ikramov, Kh. D. 3 2018 On the parameters of the singular part of the Horn-Sergeichuk regularizing decomposition. Zbl 1453.15004 Ikramov, Kh. D. 1 2018 Checking the congruence between accretive matrices. Zbl 1376.65071 Ikramov, Kh. D. 3 2017 Classifying anti-commuting pairs of Toeplitz and Hankel matrices. Zbl 1381.15023 Chugunov, V. N.; Ikramov, Kh. D. 2 2017 On the calculation of neutral subspaces of a matrix. Zbl 1369.15009 Ikramov, Kh. D. 2 2017 The congruent centralizer of a block diagonal matrix. Zbl 1410.15024 Ikramov, Kh. D. 1 2017 The congruent centralizer of the Horn-Sergeichuk matrix. Zbl 1378.15008 Ikramov, Kh. D. 1 2017 Classification of real pairs of commuting Toeplitz and Hankel matrices. Zbl 1374.15043 Chugunov, V. N.; Ikramov, Kh. D. 1 2016 Permutability of Toeplitz and Hankel matrices. Zbl 1303.15037 Chugunov, V. N.; Ikramov, Kh. D. 4 2015 Unitary similarity automorphisms of the space of \(3 \times 3\) Toeplitz-plus-Hankel matrices. Zbl 1332.15029 Ikramov, Kh. D.; Abdikalykov, A. K.; Chugunov, V. N. 3 2015 Unitary congruence automorphisms of the space of Toeplitz matrices. Zbl 1312.15040 Abdikalykov, A. K.; Chugunov, V. N.; Ikramov, Kh. D. 3 2015 On the eigenvectors of Toeplitz matrices. Zbl 1327.15062 Ikramov, Kh. D. 1 2015 Toeplitz-plus-Hankel circulants are reducible to block diagonal form via unitary congruences. Zbl 1309.15022 Ikramov, Khakim D. 1 2015 A complete solution of the permutability problem for Toeplitz and Hankel matrices. Zbl 1312.15041 Chugunov, V. N.; Ikramov, Kh. D. 1 2015 On the solvability of a certain class of quadratic matrix equations. Zbl 1301.15013 Ikramov, Kh. D. 6 2014 Unitary automorphisms of the space of Toeplitz matrices. Zbl 1306.15028 Ikramov, Kh. D. 5 2014 Unitary automorphisms of the space of Hankel matrices. Zbl 1315.15029 Ikramov, Kh. D. 4 2014 On local conditions characterizing the set of (T+H)-matrices. Zbl 1305.15067 Ikramov, K. D.; Chugunov, V. N.; Abdikalykov, A. K. 2 2014 On eigenvalues of \((T+H)\)-circulants and \((T+H)\)-skew-circulants. Zbl 1324.65061 Abdikalykov, A. K.; Ikramov, Kh. D.; Chugunov, V. N. 2 2014 On the solvability of a certain class of sesquilinear matrix equations. Zbl 1297.15017 Ikramov, Khakim D. 1 2014 Fast algorithms for calculating the eigenvalues of normal Hankel matrices. Zbl 1333.65036 Abdikalykov, A. K.; Ikramov, Kh. D.; Chugunov, V. N. 1 2014 Unitary congruences and Hankel matrices. Zbl 1305.15066 Abdikalykov, A. K.; Ikramov, K. D.; Chugunov, V. N. 1 2014 Numerical solution of the matrix equations \(AX + X ^TB = C\) and \(AX + X*B = C\) in the self-adjoint case. Zbl 1313.65096 Vorontsov, Yu. O.; Ikramov, Kh. D. 1 2014 Numerical solution of Sylvester matrix equations in the self-adjoint case. Zbl 1311.65045 Ikramov, Kh. D.; Vorontsov, Yu. O. 1 2014 Normality conditions for matrix equations of the Sylvester type. Zbl 1318.15007 Ikramov, Kh. D. 1 2014 Self-conjugacy conditions for matrix equations of the Stein type. Zbl 1278.15016 Ikramov, Kh. D. 5 2013 Linear matrix equations of the Sylvester type in the self-conjugate case. Zbl 1278.15015 Ikramov, Kh. D. 4 2013 Numerical solution of matrix equations of the form \(X + AX ^TB = C\). Zbl 1274.65127 Vorontsov, Yu. O.; Ikramov, Kh. D. 3 2013 Self-conjugacy conditions for semilinear matrix equations. Zbl 1278.15014 Ikramov, Kh. D. 3 2013 Numerical solution of the matrix equations \(AX+X^TB=C\) and \(X+AX^TB=C\) with rectangular coefficients \(A\) and \(B\). Zbl 1271.65082 Vorontsov, Yu. O.; Ikramov, Kh. D. 1 2013 Antilinear operators and special matrices. Zbl 1271.15027 Ikramov, Kh. D. 1 2013 Numerical algorithms for solving matrix equations \(AX + BX^T = C\) and \(AX + BX^\ast = C\). Zbl 1299.65083 Vorontsov, Yu. O.; Ikramov, Kh. D. 1 2013 The matrix equation \(X + AX^TB = C\): Conditions for unique solvability and a numerical algorithm for its solution. Zbl 1255.15021 Ikramov, Khakim D.; Vorontsov, Yu. O. 9 2012 Takagi’s decomposition of a symmetric unitary matrix as a finite algorithm. Zbl 1249.15017 Ikramov, Kh. D. 4 2012 Conditions for unique solvability of the matrix equation \(AX+X^\ast B=C\). Zbl 1274.15033 Vorontsov, Yu. O.; Ikramov, Kh. D. 4 2012 Antilinear operators and symplectic matrix algebra. Zbl 1255.15044 Ikramov, Kh. D. 2 2012 On unitary transposable matrices of order three. Zbl 1283.15035 Ikramov, Kh. D.; Abdikalykov, A. K. 1 2012 Equations of the form \(X\bar X = A\) with skew-Hamiltonian matrices \(A\). Zbl 1263.15034 Ikramov, Kh. D. 1 2012 Simultaneous decomplexification of a pair of complex matrices via a unitary similarity transformation. Zbl 1256.15006 Abdikalykov, A. K.; Ikramov, Kh. D. 1 2012 Effective algorithms for decomplexifying a matrix by unitary similarities or congruences. Zbl 1266.15019 Ikramov, Kh. D. 1 2012 A numerical algorithm for solving the matrix equation \(AX + X^TB = C\). Zbl 1249.65099 Vorontsov, Yu. O.; Ikramov, Kh. D. 8 2011 A criterion for unitary congruence between matrices. Zbl 1232.15012 Al’pin, Yu. A.; Ikramov, Kh. D. 7 2011 Finite algorithms for verifying unitary similarity and unitary congruence for a pair of complex matrices. Zbl 1232.15014 Ikramov, Kh. D. 5 2011 On the unique solvability of the matrix equation \(AX + X^{T}B = C\) in the singular case. Zbl 1390.15051 Ikramov, Kh. D.; Vorontsov, Yu. O. 4 2011 Simultaneous reduction to block triangular form and theorems on pairs of complex idempotents. Zbl 1249.15016 Ikramov, Kh. D. 2 2011 On latently real matrices and block quaternions. Zbl 1291.15031 Ikramov, Kh. D. 2 2011 Simultaneous decomplexification of a pair of complex matrices by a unitary congruence transformation. Zbl 1246.15014 Ikramov, Kh. D. 1 2011 On almost normal matrices. Zbl 1255.15045 Ikramov, Kh. D. 1 2011 On sufficient conditions for the existence of a unitary congruence transformation of a given complex matrix into a real one. Zbl 1291.15030 Ikramov, Kh. D. 1 2011 Conditions for unique solvability of the matrix equation \(AX + X^TB = C\). Zbl 1208.15013 Ikramov, Kh. D. 7 2010 On complex matrices that are unitarily similar to real matrices. Zbl 1275.15006 Ikramov, Kh. D. 5 2010 A note on complex matrices that are unitarily congruent to real matrices. Zbl 1192.15003 Ikramov, Khakim D. 4 2010 A complete solution of the normal Hankel problem. Zbl 1194.15027 Chugunov, V. N.; Ikramov, Kh. D. 2 2010 Quadratically normal and congruence-normal matrices. Zbl 1288.15048 Ikramov, Kh. D.; Fassbender, H. 2 2010 On complex matrices that can be made real by a unitary similarity transformation. Zbl 1205.15022 Ikramov, Kh. D. 2 2010 Unitary congruence classes of 2-by-2 complex matrices. Zbl 1203.15008 Ikramov, Kh. D. 2 2010 On a constructive procedure for verifying whether a matrix can be made real by a unitary similarity transformation. Zbl 1224.15024 Ikramov, Kh. D 1 2010 Criteria for unitary congruence of complex \(2 \times 2\) matrices. Zbl 1231.15014 Ikramov, Kh. D. 1 2010 On Toeplitz matrices that are simultaneously normal and conjugate-normal. Zbl 1288.15035 Ikramov, Kh. D.; Chugunov, V. N. 1 2010 A contribution to the normal Hankel problem. Zbl 1163.15029 Chugunov, V. N.; Ikramov, Kh. D. 6 2009 On the product of two skew-Hamiltonian or two skew-symmetric matrices. Zbl 1176.15048 Ikramov, Kh. D.; Fassbender, H. 5 2009 A method of congruent type for linear systems with conjugate-normal coefficient matrices. Zbl 1199.65138 Kamalvand, Ghasemi M.; Ikramov, Kh. D. 4 2009 Low-rank perturbations of normal and conjugate-normal matrices and their condensed forms under unitary similarities and congruences. Zbl 1228.15017 Kamalvand, M. Ghasemi; Ikramov, Kh. D. 4 2009 On the reduction of the normal Hankel problem to two particular cases. Zbl 1181.15036 Ikramov, Kh. D.; Chugunov, V. N. 3 2009 Low-rank perturbations of symmetric matrices and their condensed forms under unitary congruences. Zbl 1199.15104 Kamalvand, M. G.; Ikramov, Kh. D. 2 2009 Theorems of the Hoffman-Wielandt type for the coneigenvalues of complex matrices. Zbl 1189.15021 Ikramov, Kh. D.; Nesterenko, Yu. R. 2 2009 The conjugate-normal Toeplitz problem. Zbl 1161.15006 Chugunov, V. N.; Ikramov, Kh. D. 2 2009 On the matrix equation \(X\bar X = A\). Zbl 1255.15020 Ikramov, Kh. D. 2 2009 Classifying normal Hankel matrices. Zbl 1255.15036 Ikramov, Kh. D.; Chugunov, V. N. 2 2009 On complex Benzi-Golub matrices. Zbl 1180.15030 Ikramov, Kh. D. 1 2009 Conjugate-normal matrices: A survey. Zbl 1168.15020 Faßbender, H.; Ikramov, Kh. D. 14 2008 A note on an unusual type of polar decomposition. Zbl 1144.15007 Faßbender, H.; Ikramov, Kh. D. 4 2008 On normal Hankel matrices of low orders. Zbl 1219.15013 Ikramov, Kh. D.; Chugunov, V. N. 2 2008 The canonical Schur form of a matrix with simple eigenvalues. Zbl 1153.15018 Ikramov, Kh. D. 2 2008 The dimension of the variety of conjugate-normal matrices. Zbl 1217.15024 Kamalvand, M. Ghasemi; Ikramov, Kh. D. 1 2008 Some observations on the Youla form and conjugate-normal matrices. Zbl 1126.15012 Faßbender, H.; Ikramov, Kh. D. 18 2007 On a new class of normal Hankel matrices. Zbl 1322.15014 Ikramov, Kh. D.; Chugunov, V. N. 8 2007 On a finite rational criterion for the irreducibility of a matrix. Zbl 1177.15014 Ikramov, Kh. D. 3 2007 On condiagonalizable matrices. Zbl 1120.15010 Ikramov, Khakim D. 2 2007 Reducing complex matrices to condensed forms by unitary congruence transformations. Zbl 1148.15006 Ikramov, Kh. D. 1 2007 Once again on the solution of systems of linear equations whose coefficient matrices are low-rank perturbations of Hermitian matrices. Zbl 1235.15004 Dana, M.; Ikramov, Kh. D. 2 2006 On pseudo-eigenvalues and singular numbers of a complex square matrix. Zbl 1119.15010 Ikramov, Kh. D. 2 2006 Several remarks on Toeplitz and Hankel circulants. Zbl 1235.15032 Ikramov, Kh. D.; Chugunov, V. N. 1 2006 A criterion for the unitary congruence of conjugate-normal matrices. Zbl 1134.15008 Ikramov, Kh. D. 1 2006 On the properties of accretive-dissipative matrices. Zbl 1079.15021 George, A.; Ikramov, Kh. D. 27 2005 On the codimension of the variety of symmetric matrices with multiple eigenvalues. Zbl 1081.15526 Dana, M.; Ikramov, Kh. D. 7 2005 Several observations on symplectic, Hamiltonian, and skew-Hamiltonian matrices. Zbl 1077.15010 Faßbender, Heike; Ikramov, Kh. D. 7 2005 A minimal residual method for a special class of linear systems with normal matrices of coefficients. Zbl 1102.65033 Dana, M.; Zykov, A. G.; Ikramov, Kh. D. 4 2005 Unitary similarity of algebras generated by pairs of orthoprojectors. Zbl 1079.15505 Al’pin, Yu. A.; Ikramov, Kh. D. 3 2005 Justification of a Malyshev-type formula in the nonnormal case. Zbl 1087.15026 Ikramov, Kh. D.; Nazari, A. M. 2 2005 On the multiplication of the scalar and the matrix power series. Zbl 1077.65004 Buslenko, A. S.; Ikramov, Kh. D. 1 2005 Computational aspects of the use of Malyshev’s formula. Zbl 1076.65036 Ikramov, Kh. D.; Nazari, A. M. 4 2004 Gaussian elimination is stable for the inverse of a diagonally dominant matrix. Zbl 1050.65024 George, Alan; Ikramov, Khakim D. 4 2004 On the growth factor in Gaussian elimination for matrices with sharp angular field of values. Zbl 1168.65331 George, A.; Ikramov, K. D. 3 2004 Normal matrices and an extension of Malyshev’s formula. Zbl 1059.15027 Ikramov, Kh. D.; Nazari, A. M. 3 2004 On computer algebra procedures for a linear least squares problem with linear constraints. Zbl 1105.49039 Ikramov, Kh. D.; Matin far, M. 2 2004 ...and 94 more Documents all cited Publications top 5 cited Publications all top 5 Cited by 503 Authors 134 Ikramov, Saidkhakim Dododshanovich 24 Chugunov, Vadim N. 15 Vorontsov, Yu. O. 12 Abdikalykov, A. K. 8 Faßbender, Heike 8 Liu, Jianzhou 7 Borobia, Alberto 7 Chu, Moody T. 7 De La Cruz, Ralph John Lamadrid 7 Markova, Olga V. 6 Canogar, Roberto 6 Galba, E. F. 6 Horn, Roger Alan 6 Lin, Minghua 6 Merino, Dennis I. 6 Nazari, Ali Mohamad 6 Paras, Agnes T. 6 Sergeichuk, Vladimir Vasil’evich 6 Sergiyenko, Ivan Vasyl’ovych 5 da Fonseca, Carlos Martins 5 Deineka, V. S. 5 Elsner, Ludwig F. 5 Jamiołkowski, Andrzej 5 Shavarovs’kij, B. Z. 4 Bebiano, Natália Isabel Quadros 4 Dong, Sheng 4 Dür, Mirjam 4 Huhtanen, Marko 4 Pastuszak, Grzegorz 4 Teretenkov, Alexander E. 4 Vandebril, Raf 4 Wang, Qingwen 4 Yadykin, Igor Borisovich 3 Al’pin, Yurii A. 3 Bomze, Immanuel M. 3 Bundfuss, Stefan 3 de Terán, Fernando 3 Đorđević, Dragan S. 3 Drury, Stephen William 3 Fu, Xiaohui 3 Gu, Chuanqing 3 Guterman, Alexander Èmilevich 3 Huang, Zejun 3 Karchevskiĭ, Mikhail Mironovich 3 Kilic, Emrah 3 Kudryavtsev, Dmitry K. 3 Kurbatov, Vitaliĭ Gennad’evich 3 Kurbatova, Irina Vital’evna 3 Lin, Matthew M. 3 Liu, Zhongyun 3 Psarrakos, Panayiotis J. 3 Tan, Fuping 3 Tian, Yongge 3 Tian, Zhaolu 3 Tyrtyshnikov, Evgeniĭ Evgen’evich 3 Zhang, Fuzhen 2 Bevilacqua, Roberto 2 Brooks, Cara D. 2 Chen, Guoliang 2 Chiang, Chun-Yueh 2 Chu, Delin 2 Condori, Alberto A. 2 Cvetković, Ljiljana 2 Del Corso, Gianna M. 2 Duan, Guangren 2 Ferranti, Micol 2 Furtado, Susana 2 Gabriel, Richard P. 2 George, Alan 2 Gerasimova, Tatiana G. 2 Goodson, Geoffrey R. 2 Granario, Daryl Q. 2 Guan, Yu 2 Guglielmi, Nicola 2 Hirzallah, Omar 2 Huang, Ting-Zhu 2 Huang, Zhuohong 2 Jing, Naihuan 2 Johnson, Charles Royal 2 Khimich, A. N. 2 Kittaneh, Fuad 2 Kokabifar, E. 2 Kolotilina, Lily Yu. 2 Kressner, Daniel 2 Kublanovskaya, Vera Nikolaevna 2 Lee, Woo Young 2 Li, Chi-Kwong 2 Liu, Wanquan 2 Mehl, Christian 2 Mosić, Dijana 2 Nedović, Maja 2 Nesterenko, Yuri R. 2 Noferini, Vanni 2 Noschese, Silvia 2 Prokip, Volodymyr M. 2 Reams, Robert B. 2 Reichel, Lothar 2 Rodman, Leiba X. 2 Scalone, Carmela 2 Simoncini, Valeria ...and 403 more Authors all top 5 Cited in 123 Serials 103 Linear Algebra and its Applications 43 Journal of Mathematical Sciences (New York) 30 Doklady Mathematics 23 Linear and Multilinear Algebra 23 Mathematical Notes 16 Computational Mathematics and Mathematical Physics 14 Applied Mathematics and Computation 14 Moscow University Computational Mathematics and Cybernetics 12 Cybernetics and Systems Analysis 10 Zhurnal Vychislitel’noĭ Matematiki i Matematicheskoĭ Fiziki 9 Journal of Computational and Applied Mathematics 9 ELA. 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