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Author ID: hartwig.robert-e Recent zbMATH articles by "Hartwig, Robert E."
Published as: Hartwig, Robert E.; Hartwig, R. E.; Hartwig, Robert

Publications by Year

Citations contained in zbMATH Open

103 Publications have been cited 1,411 times in 925 Documents Cited by Year
How to partially order regular elements. Zbl 0442.06006
Hartwig, Robert E.
142
1980
Some additive results on Drazin inverse. Zbl 0967.15003
Hartwig, Robert E.; Wang, Guorong; Wei, Yimin
107
2001
Block generalized inverses. Zbl 0335.15004
Hartwig, Robert E.
78
1976
Representations for the Drazin inverse of a \(2 \times 2\) block matrix. Zbl 1100.15003
Hartwig, Robert; Li, Xiezhang; Wei, Yimin
76
2006
On some characterizations of the ”star” partial ordering for matrices and rank subtractivity. Zbl 0603.15001
Hartwig, Robert E.; Styan, George P. H.
62
1986
Group inverses and Drazin inverses of bidiagonal and triangular Toeplitz matrices. Zbl 0372.15003
Hartwig, R. E.; Shoaf, J.
61
1977
The reverse order law revisited. Zbl 0584.15002
Hartwig, R. E.
54
1986
The group inverse of a companion matrix. Zbl 0890.15003
Puystjens, R.; Hartwig, R. E.
46
1997
A note on the group structure of unit regular ring elements. Zbl 0355.16005
Hartwig, Robert E.; Luh, Jiang
37
1977
The matrix equation \(A\bar X-AB=C\) and its special cases. Zbl 0655.15013
Bevis, Jean H.; Hall, Frank J.; Hartwig, Robert E.
36
1988
Matrices for which A* and A+ commute. Zbl 0525.15006
Hartwig, Robert E.; Spindelboeck, Klaus
36
1983
Lattice properties of the *-order for complex matrices. Zbl 0485.15014
Hartwig, Robert E.; Drazin, Michael P.
27
1982
Some additive results on Drazin inverses. Zbl 1182.65067
Patrício, P.; Hartwig, R. E.
26
2009
More on the Souriau-Frame algorithm and the Drazin inverse. Zbl 0335.15008
Hartwig, R. E.
26
1976
Determinantal identities over commutative semirings. Zbl 1057.15009
Poplin, Phillip L.; Hartwig, Robert E.
25
2004
When is a matrix a sum of idempotents? Zbl 0696.15011
Hartwig, Robert E.; Putcha, Mohan S.
24
1990
Asymptotic behavior of Toeplitz matrices and determinants. Zbl 0169.04403
Hartwig, R. E.; Fisher, M. E.
24
1969
Partial orders based on outer inverses. Zbl 0778.15003
Mitra, Sujit Kumar; Hartwig, Robert E.
24
1992
Applications of the Drazin inverse to the Hill cryptographic system. III. Zbl 0491.94015
Hartwig, Robert E.; Levine, Jack
24
1981
On products of EP matrices. Zbl 0868.15015
Hartwig, Robert E.; Katz, Irving J.
23
1997
Resultants and the solution of AX - XB = - C. Zbl 0222.15007
Hartwig, Robert E.
21
1972
When is a matrix a difference of two idempotents? Zbl 0696.15010
Hartwig, Robert E.; Putcha, Mohan S.
19
1990
The \((2,2,0)\) group inverse problem. Zbl 1204.15014
Patrício, P.; Hartwig, R. E.
18
2010
Singular value decomposition and the Moore-Penrose inverse of bordered matrices. Zbl 0335.15006
Hartwig, Robert E.
18
1976
A note on the partial ordering of positive semi-definite matrices. Zbl 0408.15015
Hartwig, Robert E.
18
1978
The group inverse of a triangular matrix. Zbl 0851.15005
Chen, Xuzhou; Hartwig, Robert E.
17
1996
Roth’s equivalence problem in unit regular rings. Zbl 0347.15005
Hartwig, Robert E.
15
1976
The \((2,2,0)\) Drazin inverse problem. Zbl 1261.15008
Patrício, P.; Hartwig, R. E.
14
2012
On finite regular rings. Zbl 0326.16012
Hartwig, Robert E.; Luh, Jiang
14
1976
1-2 inverses and the invariance of \(BA^+C\). Zbl 0312.15001
Hartwig, Robert E.
13
1975
Partial isometries, contractions and EP matrices. Zbl 0575.15008
Hartwig, Robert E.; Spindelböck, Klaus
13
1983
The hyperpower iteration revisited. Zbl 0848.65021
Chen, Xu-Zhou; Hartwig, Robert E.
11
1996
The link between regularity and strong-pi-regularity. Zbl 1204.15015
Patrício, Pedro; Hartwig, R. E.
10
2010
Applications of the Drazin inverse to the Hill cryptographic system. I. Zbl 0427.94015
Levine, Jack; Hartwig, Robert E.
10
1980
Roth’s removal rule revisited. Zbl 0509.15004
Hartwig, Robert E.
10
1983
Bounds on the exponent of primitivity which depend on the spectrum and the minimal polynomial. Zbl 0790.15016
Hartwig, Robert E.; Neumann, Michael
9
1993
Further results on generalized inverses of partitioned matrices. Zbl 0345.15005
Hall, Frank J.; Hartwig, Robert E.
9
1976
A note on rank-additivity. Zbl 0456.15002
Hartwig, Robert E.
8
1981
A method for calculating Drazin inverse of square matrix A. Zbl 0458.15002
Hartwig, Robert E.
8
1981
Applications of the Drazin inverse to Cesaro-Neumann iterations. Zbl 0506.65016
Hartwig, R. E.; Hall, F. J.
7
1982
Generalized polynomial bases and the Bézoutian. Zbl 0873.15016
Mani, Vaidyanath; Hartwig, Robert E.
7
1997
Rank factorization and Moore-Penrose inversion. Zbl 0335.15005
Hartwig, Robert E.
7
1976
On the derivative of the Drazin inverse of a complex matrix. Zbl 0401.15003
Hartwig, Robert E.; Shoaf, Jim
7
1979
The resultant and the matrix equation AX = XB. Zbl 0243.15008
Hartwig, Robert E.
6
1972
Semisimilarity for matrices over a division ring. Zbl 0467.15007
Hartwig, Robert E.; Putcha, Mohan S.
6
1981
The universal flip matrix and the generalized faro-shuffle. Zbl 0316.15013
Hartwig, Robert E.; Morris, S. Brent
6
1975
Generalized inverses, EP elements and associates. Zbl 0376.16012
Hartwig, Robert E.
6
1978
Pseudo-similarity for matrices over a field. Zbl 0386.15013
Hartwig, R. E.; Hall, F. J.
6
1978
Pseudo-similarity and partial unit regularity. Zbl 0544.15005
Hall, Frank J.; Hartwig, Robert E.; Katz, Irving J.; Newman, Morris
6
1983
An algebraic-analytic approach to nonnegative bases. Zbl 0708.15003
Hartwig, Robert E.; Neumann, Michael; Rose, Nicholas J.
5
1990
When does the Moore-Penrose inverse flip? Zbl 1241.15004
Hartwig, R. E.; Patrício, P.
5
2012
An application of the Moore-Penrose inverse to antisymmetric relations. Zbl 0444.16005
Hartwig, Robert E.
5
1980
Applications of the Wronskian and Gram matrices of \(\{t^ j \exp(\lambda_ k t)\}\). Zbl 0489.34023
Hartwig, Robert E.
5
1982
On canonical correlations and the degrees of non-orthogonality in the three-way layout. Zbl 0858.62045
Bérubé, Julie; Hartwig, Robert E.; Styan, George P. H.
5
1993
Some closed form formulae for the intersection of two special matrices under the star order. Zbl 0575.15009
Hartwig, Robert E.; Spindelböck, Klaus
5
1983
Consimilarity and the matrix equation \(A\bar X-XB=C\). Zbl 0655.15012
Bevis, Jean H.; Hall, Frank J.; Hartwig, Robert E.
4
1987
Pseudo lattice properties of the star-orthogonal partial ordering for star-regular rings. Zbl 0423.06013
Hartwig, Robert E.
4
1979
AX-XB=C, resultants and generalized inverses. Zbl 0268.15004
Hartwig, Robert E.
4
1975
On a theorem of Flanders. Zbl 0508.15008
Hartwig, Robert E.
4
1982
The generalized faro shuffle. Zbl 0334.05034
Morris, S. Brent; Hartwig, Robert E.
4
1976
Generalizations of the spectral theorem for matrices. II. Matrix polynomials over arbitrary fields. Zbl 0548.15026
Hartwig, R. E.
4
1984
A remark on the characterization of the parallel sum of two matrices. Zbl 0638.15003
Hartwig, Robert E.
3
1987
Note on a linear difference equation. Zbl 1132.39001
Hartwig, Robert E.
3
2006
Maximal elements under the three partial orders. Zbl 0767.15017
Hartwig, Robert E.; Loewy, Raphael
3
1992
Applications of the Drazin inverse to the Hill cryptographic system. IV. Zbl 0491.94016
Hartwig, Robert E.; Levine, Jack
3
1981
Diagonalizing triangular matrices via orthogonal Pierce decompositions. Zbl 1074.15006
Hartwig, R. E.; Patrício, P.; Puystjens, R.
3
2005
EP perturbations. Zbl 0835.15001
Hartwig, Robert E.
3
1994
On some characterizations of pairwise star orthogonality using rank and dagger additivity and subtractivity. Zbl 0848.15013
Hartwig, Robert E.; Omladič, Matjaž; Šemrl, Peter; Styan, George P. H.
3
1996
Products of EP elements in reflexive semigroups. Zbl 0329.20052
Hartwig, Robert E.; Katz, Irving J.
3
1976
Schur’s theorem and the Drazin inverse. Zbl 0362.15003
Hartwig, Robert E.
3
1978
The Drazin inverse as a gradient. Zbl 0562.15001
Gabriel, Richard; Hartwig, Robert E.
3
1984
Invariance under outer inverses. Zbl 1390.15011
Hartwig, R. E.; Patrício, P.
3
2018
Resultants, companion matrices, and Jacobson chains. Zbl 0622.15003
Hartwig, Robert E.
2
1987
A note on light matrices. Zbl 0637.15016
Hartwig, Robert E.
2
1987
Toeplitz determinants and Szegö’s formula. Zbl 0174.31604
Hartwig, R. E.
2
1969
A note on Jacobson chains. Zbl 0222.15006
Hartwig, Robert E.
2
1972
On Roth’s pseudo equivalence over rings. Zbl 1158.15009
Hartwig, R. E.; Patricio, Pedro
2
2007
Invariance, group inverses and parallel sums. Zbl 0432.16009
Hartwig, Robert E.; Shoaf, J. M.
2
1980
Applications of the Drazin inverse to the Hill cryptographic system. II. Zbl 0444.94012
Levine, Jack; Hartwig, Robert E.
2
1980
Drazin inverses and canonical forms in \(M_ 0(\)Z/h). Zbl 0455.15003
Hartwig, Robert E.
2
1981
The weighted \(*\)-core-nilpotent decomposition. Zbl 0813.15002
Hartwig, Robert E.
2
1994
Duality and black box interpolation. I: The one variable nonderogatory case. Zbl 0853.15006
Mani, Vaidyanath; Hartwig, Robert E.
2
1995
Spectral inverses and the row-space equations. Zbl 0388.15002
Hartwig, Robert E.
2
1978
A note on periodic matrices. Zbl 0391.15004
Hartwig, Robert E.
2
1977
A note on pseudo-similarity of matrices. Zbl 0398.15009
Hall, Frank J.; Hartwig, Robert E.; Katz, Irving J.
2
1978
Theory and applications of matrix perturbations, with respect to Hankel matrices and power formulae. Zbl 0401.93021
Hartwig, Robert E.
2
1979
Block striped and block nested matrices. Zbl 0592.15005
Hartwig, R. E.; Hall, F. J.; Katz, I. J.
2
1985
Perturbation results and the forward order law for the Moore-Penrose inverse of a product. Zbl 1405.15007
Castro-González, Nieves; Hartwig, Robert E.
2
2018
Pseudo-consimilarity and semi-consimilarity of complex matrices. Zbl 0629.15005
Bevis, Jean H.; Hall, Frank J.; Hartwig, Robert E.
1
1987
The group inverse of a block triangular matrix. Zbl 0661.15003
Hartwig, Robert E.
1
1987
A note on power bounded matrices. Zbl 1251.15016
Hartwig, R. E.; Patricio, P.
1
2012
Algebraic properties of governing matrices used in Cesaro-Neumann iterations. Zbl 0468.65019
Hall, Frank J.; Hartwig, Robert E.
1
1981
A convexity result for complex numbers with applications to nonnegative normal matrices. Zbl 0823.15019
Kirkland, Steve; Hartwig, Robert E.
1
1995
Roth’s removal rule and the rational canonical form. Zbl 0861.15010
Hartwig, Robert E.
1
1996
Computing the Moore-Penrose inverse for the covariance matrix in constrained nonlinear estimation. Zbl 0874.62069
Hartmann, Wolfgang M.; Hartwig, Robert E.
1
1996
Power additivity and orthogonality. Zbl 0924.15007
Hartwig, Robert E.; Šemrl, Peter
1
1998
Constrained convergence. Zbl 0930.65032
Hartwig, Robert E.; Šemrl, Peter
1
1999
A note on the existence of inner and outer inverses. Zbl 0396.16006
Hartwig, Robert E.
1
1978
Two by two units. Zbl 1327.15004
Hartwig, R. E.; Patrício, P.
1
2014
The group inverse of the nivellateur. Zbl 1400.15008
Hartwig, R. E.; Patrício, P.
1
2018
Invariance under outer inverses. Zbl 1390.15011
Hartwig, R. E.; Patrício, P.
3
2018
Perturbation results and the forward order law for the Moore-Penrose inverse of a product. Zbl 1405.15007
Castro-González, Nieves; Hartwig, Robert E.
2
2018
The group inverse of the nivellateur. Zbl 1400.15008
Hartwig, R. E.; Patrício, P.
1
2018
Some regular sums. Zbl 1307.15008
Patrício, P.; Hartwig, R. E.
1
2015
Two by two units. Zbl 1327.15004
Hartwig, R. E.; Patrício, P.
1
2014
The \((2,2,0)\) Drazin inverse problem. Zbl 1261.15008
Patrício, P.; Hartwig, R. E.
14
2012
When does the Moore-Penrose inverse flip? Zbl 1241.15004
Hartwig, R. E.; Patrício, P.
5
2012
A note on power bounded matrices. Zbl 1251.15016
Hartwig, R. E.; Patricio, P.
1
2012
The \((2,2,0)\) group inverse problem. Zbl 1204.15014
Patrício, P.; Hartwig, R. E.
18
2010
The link between regularity and strong-pi-regularity. Zbl 1204.15015
Patrício, Pedro; Hartwig, R. E.
10
2010
Some additive results on Drazin inverses. Zbl 1182.65067
Patrício, P.; Hartwig, R. E.
26
2009
On Roth’s pseudo equivalence over rings. Zbl 1158.15009
Hartwig, R. E.; Patricio, Pedro
2
2007
Representations for the Drazin inverse of a \(2 \times 2\) block matrix. Zbl 1100.15003
Hartwig, Robert; Li, Xiezhang; Wei, Yimin
76
2006
Note on a linear difference equation. Zbl 1132.39001
Hartwig, Robert E.
3
2006
The Picard iteration and its application. Zbl 1103.65034
Chen, Xuzhou; Hartwig, Robert E.
1
2006
Diagonalizing triangular matrices via orthogonal Pierce decompositions. Zbl 1074.15006
Hartwig, R. E.; Patrício, P.; Puystjens, R.
3
2005
Determinantal identities over commutative semirings. Zbl 1057.15009
Poplin, Phillip L.; Hartwig, Robert E.
25
2004
Some additive results on Drazin inverse. Zbl 0967.15003
Hartwig, Robert E.; Wang, Guorong; Wei, Yimin
107
2001
Constrained convergence. Zbl 0930.65032
Hartwig, Robert E.; Šemrl, Peter
1
1999
Power additivity and orthogonality. Zbl 0924.15007
Hartwig, Robert E.; Šemrl, Peter
1
1998
The group inverse of a companion matrix. Zbl 0890.15003
Puystjens, R.; Hartwig, R. E.
46
1997
On products of EP matrices. Zbl 0868.15015
Hartwig, Robert E.; Katz, Irving J.
23
1997
Generalized polynomial bases and the Bézoutian. Zbl 0873.15016
Mani, Vaidyanath; Hartwig, Robert E.
7
1997
The group inverse of a triangular matrix. Zbl 0851.15005
Chen, Xuzhou; Hartwig, Robert E.
17
1996
The hyperpower iteration revisited. Zbl 0848.65021
Chen, Xu-Zhou; Hartwig, Robert E.
11
1996
On some characterizations of pairwise star orthogonality using rank and dagger additivity and subtractivity. Zbl 0848.15013
Hartwig, Robert E.; Omladič, Matjaž; Šemrl, Peter; Styan, George P. H.
3
1996
Roth’s removal rule and the rational canonical form. Zbl 0861.15010
Hartwig, Robert E.
1
1996
Computing the Moore-Penrose inverse for the covariance matrix in constrained nonlinear estimation. Zbl 0874.62069
Hartmann, Wolfgang M.; Hartwig, Robert E.
1
1996
Duality and black box interpolation. I: The one variable nonderogatory case. Zbl 0853.15006
Mani, Vaidyanath; Hartwig, Robert E.
2
1995
A convexity result for complex numbers with applications to nonnegative normal matrices. Zbl 0823.15019
Kirkland, Steve; Hartwig, Robert E.
1
1995
EP perturbations. Zbl 0835.15001
Hartwig, Robert E.
3
1994
The weighted \(*\)-core-nilpotent decomposition. Zbl 0813.15002
Hartwig, Robert E.
2
1994
Bounds on the exponent of primitivity which depend on the spectrum and the minimal polynomial. Zbl 0790.15016
Hartwig, Robert E.; Neumann, Michael
9
1993
On canonical correlations and the degrees of non-orthogonality in the three-way layout. Zbl 0858.62045
Bérubé, Julie; Hartwig, Robert E.; Styan, George P. H.
5
1993
The pyramid decomposition and rank minimization. Zbl 0797.15013
Hartwig, Robert E.
1
1993
Partial orders based on outer inverses. Zbl 0778.15003
Mitra, Sujit Kumar; Hartwig, Robert E.
24
1992
Maximal elements under the three partial orders. Zbl 0767.15017
Hartwig, Robert E.; Loewy, Raphael
3
1992
When is a matrix a sum of idempotents? Zbl 0696.15011
Hartwig, Robert E.; Putcha, Mohan S.
24
1990
When is a matrix a difference of two idempotents? Zbl 0696.15010
Hartwig, Robert E.; Putcha, Mohan S.
19
1990
An algebraic-analytic approach to nonnegative bases. Zbl 0708.15003
Hartwig, Robert E.; Neumann, Michael; Rose, Nicholas J.
5
1990
The matrix equation \(A\bar X-AB=C\) and its special cases. Zbl 0655.15013
Bevis, Jean H.; Hall, Frank J.; Hartwig, Robert E.
36
1988
Consimilarity and the matrix equation \(A\bar X-XB=C\). Zbl 0655.15012
Bevis, Jean H.; Hall, Frank J.; Hartwig, Robert E.
4
1987
A remark on the characterization of the parallel sum of two matrices. Zbl 0638.15003
Hartwig, Robert E.
3
1987
Resultants, companion matrices, and Jacobson chains. Zbl 0622.15003
Hartwig, Robert E.
2
1987
A note on light matrices. Zbl 0637.15016
Hartwig, Robert E.
2
1987
Pseudo-consimilarity and semi-consimilarity of complex matrices. Zbl 0629.15005
Bevis, Jean H.; Hall, Frank J.; Hartwig, Robert E.
1
1987
The group inverse of a block triangular matrix. Zbl 0661.15003
Hartwig, Robert E.
1
1987
On some characterizations of the ”star” partial ordering for matrices and rank subtractivity. Zbl 0603.15001
Hartwig, Robert E.; Styan, George P. H.
62
1986
The reverse order law revisited. Zbl 0584.15002
Hartwig, R. E.
54
1986
Block striped and block nested matrices. Zbl 0592.15005
Hartwig, R. E.; Hall, F. J.; Katz, I. J.
2
1985
Generalizations of the spectral theorem for matrices. II. Matrix polynomials over arbitrary fields. Zbl 0548.15026
Hartwig, R. E.
4
1984
The Drazin inverse as a gradient. Zbl 0562.15001
Gabriel, Richard; Hartwig, Robert E.
3
1984
Matrices for which A* and A+ commute. Zbl 0525.15006
Hartwig, Robert E.; Spindelboeck, Klaus
36
1983
Partial isometries, contractions and EP matrices. Zbl 0575.15008
Hartwig, Robert E.; Spindelböck, Klaus
13
1983
Roth’s removal rule revisited. Zbl 0509.15004
Hartwig, Robert E.
10
1983
Pseudo-similarity and partial unit regularity. Zbl 0544.15005
Hall, Frank J.; Hartwig, Robert E.; Katz, Irving J.; Newman, Morris
6
1983
Some closed form formulae for the intersection of two special matrices under the star order. Zbl 0575.15009
Hartwig, Robert E.; Spindelböck, Klaus
5
1983
Lattice properties of the *-order for complex matrices. Zbl 0485.15014
Hartwig, Robert E.; Drazin, Michael P.
27
1982
Applications of the Drazin inverse to Cesaro-Neumann iterations. Zbl 0506.65016
Hartwig, R. E.; Hall, F. J.
7
1982
Applications of the Wronskian and Gram matrices of \(\{t^ j \exp(\lambda_ k t)\}\). Zbl 0489.34023
Hartwig, Robert E.
5
1982
On a theorem of Flanders. Zbl 0508.15008
Hartwig, Robert E.
4
1982
Applications of the Drazin inverse to the Hill cryptographic system. III. Zbl 0491.94015
Hartwig, Robert E.; Levine, Jack
24
1981
A note on rank-additivity. Zbl 0456.15002
Hartwig, Robert E.
8
1981
A method for calculating Drazin inverse of square matrix A. Zbl 0458.15002
Hartwig, Robert E.
8
1981
Semisimilarity for matrices over a division ring. Zbl 0467.15007
Hartwig, Robert E.; Putcha, Mohan S.
6
1981
Applications of the Drazin inverse to the Hill cryptographic system. IV. Zbl 0491.94016
Hartwig, Robert E.; Levine, Jack
3
1981
Drazin inverses and canonical forms in \(M_ 0(\)Z/h). Zbl 0455.15003
Hartwig, Robert E.
2
1981
Algebraic properties of governing matrices used in Cesaro-Neumann iterations. Zbl 0468.65019
Hall, Frank J.; Hartwig, Robert E.
1
1981
How to partially order regular elements. Zbl 0442.06006
Hartwig, Robert E.
142
1980
Applications of the Drazin inverse to the Hill cryptographic system. I. Zbl 0427.94015
Levine, Jack; Hartwig, Robert E.
10
1980
An application of the Moore-Penrose inverse to antisymmetric relations. Zbl 0444.16005
Hartwig, Robert E.
5
1980
Invariance, group inverses and parallel sums. Zbl 0432.16009
Hartwig, Robert E.; Shoaf, J. M.
2
1980
Applications of the Drazin inverse to the Hill cryptographic system. II. Zbl 0444.94012
Levine, Jack; Hartwig, Robert E.
2
1980
On the derivative of the Drazin inverse of a complex matrix. Zbl 0401.15003
Hartwig, Robert E.; Shoaf, Jim
7
1979
Pseudo lattice properties of the star-orthogonal partial ordering for star-regular rings. Zbl 0423.06013
Hartwig, Robert E.
4
1979
Theory and applications of matrix perturbations, with respect to Hankel matrices and power formulae. Zbl 0401.93021
Hartwig, Robert E.
2
1979
A note on the partial ordering of positive semi-definite matrices. Zbl 0408.15015
Hartwig, Robert E.
18
1978
Generalized inverses, EP elements and associates. Zbl 0376.16012
Hartwig, Robert E.
6
1978
Pseudo-similarity for matrices over a field. Zbl 0386.15013
Hartwig, R. E.; Hall, F. J.
6
1978
Schur’s theorem and the Drazin inverse. Zbl 0362.15003
Hartwig, Robert E.
3
1978
Spectral inverses and the row-space equations. Zbl 0388.15002
Hartwig, Robert E.
2
1978
A note on pseudo-similarity of matrices. Zbl 0398.15009
Hall, Frank J.; Hartwig, Robert E.; Katz, Irving J.
2
1978
A note on the existence of inner and outer inverses. Zbl 0396.16006
Hartwig, Robert E.
1
1978
Group inverses and Drazin inverses of bidiagonal and triangular Toeplitz matrices. Zbl 0372.15003
Hartwig, R. E.; Shoaf, J.
61
1977
A note on the group structure of unit regular ring elements. Zbl 0355.16005
Hartwig, Robert E.; Luh, Jiang
37
1977
A note on periodic matrices. Zbl 0391.15004
Hartwig, Robert E.
2
1977
Block generalized inverses. Zbl 0335.15004
Hartwig, Robert E.
78
1976
More on the Souriau-Frame algorithm and the Drazin inverse. Zbl 0335.15008
Hartwig, R. E.
26
1976
Singular value decomposition and the Moore-Penrose inverse of bordered matrices. Zbl 0335.15006
Hartwig, Robert E.
18
1976
Roth’s equivalence problem in unit regular rings. Zbl 0347.15005
Hartwig, Robert E.
15
1976
On finite regular rings. Zbl 0326.16012
Hartwig, Robert E.; Luh, Jiang
14
1976
Further results on generalized inverses of partitioned matrices. Zbl 0345.15005
Hall, Frank J.; Hartwig, Robert E.
9
1976
Rank factorization and Moore-Penrose inversion. Zbl 0335.15005
Hartwig, Robert E.
7
1976
The generalized faro shuffle. Zbl 0334.05034
Morris, S. Brent; Hartwig, Robert E.
4
1976
Products of EP elements in reflexive semigroups. Zbl 0329.20052
Hartwig, Robert E.; Katz, Irving J.
3
1976
1-2 inverses and the invariance of \(BA^+C\). Zbl 0312.15001
Hartwig, Robert E.
13
1975
The universal flip matrix and the generalized faro-shuffle. Zbl 0316.15013
Hartwig, Robert E.; Morris, S. Brent
6
1975
AX-XB=C, resultants and generalized inverses. Zbl 0268.15004
Hartwig, Robert E.
4
1975
Resultants and the solution of AX - XB = - C. Zbl 0222.15007
Hartwig, Robert E.
21
1972
The resultant and the matrix equation AX = XB. Zbl 0243.15008
Hartwig, Robert E.
6
1972
...and 3 more Documents
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Cited by 721 Authors

54 Chen, Jianlong
51 Mosić, Dijana
50 Hartwig, Robert E.
42 Wei, Yimin
33 Liu, Xiaoji
32 Patrício, Pedro
30 Cvetković-Ilić, Dragana S.
30 Deng, Chunyuan
30 Đorđević, Dragan S.
24 Tian, Yongge
21 Baksalary, Jerzy K.
16 Marovt, Janko
16 Wu, Aiguo
15 Baksalary, Oskar Maria
15 Duan, Guangren
14 Trenkler, Götz
13 Bu, Changjiang
13 Gross, Jürgen
13 Mitra, Sujit Kumar
13 Zou, Honglin
12 Chen, Huanyin
12 Thome, Néstor
12 Wang, Qingwen
11 Guterman, Alexander Èmilevich
11 Mary, Xavier
11 Wang, Hongxing
11 Xu, Sanzhang
11 Zhu, Huihui
10 Benítez Lopez, Julio
10 Li, Tingting
10 Xiong, Zhiping
9 Puystjens, Roland
9 Stanimirović, Predrag S.
9 Styan, George P. H.
8 Cao, Chongguang
8 Ma, Haifeng
8 Martínez-Serrano, M. F.
8 Shu, Qianyu
8 Wang, Xueping
8 Wei, Junchao
8 Zhou, Mengmeng
7 Gao, Yuefeng
7 Hall, Frank J.
7 Hauke, Jan
7 Ke, Yuanyuan
7 Song, Chuanning
7 Xu, Qingxiang
7 Xu, Zhaoliang
7 Yu, Yaoming
6 Bart, Harm
6 Chen, Jianbiao
6 Dinčić, Nebojša Č.
6 Ehrhardt, Torsten
6 Huang, Junjie
6 Neumann, Michael
6 Silbermann, Bernd
6 Tan, Yijia
6 Wang, Guorong
6 Wang, Jin-Hsien
5 Danchev, Peter Vassilev
5 Djikić, Marko S.
5 Dolinar, Gregor
5 Dopazo, Esther
5 Efimov, Mikhail A.
5 Feng, Gang
5 Ferreyra, David E.
5 Qin, Yingying
5 Rakić, Dragan S.
5 Šemrl, Peter
5 Sheibani Abdolyousefi, Marjan
5 Sivakumar, Koratti Chengalrayan
5 Ungor, Burcu
5 Wu, Weijun
5 Yu, Anqi
5 Zhang, Daochang
5 Zhang, Xiaoxiang
5 Zuo, Kezheng
4 Castro González, Nieves
4 Chen, Alatancang
4 Chen, Guoliang
4 Chen, Xuzhou
4 Du, Hongke
4 Ge, Yanling
4 Guo, Li
4 Guralnick, Robert Michael
4 Jain, Surender Kumar
4 Jin, Hongwei
4 Karizaki, Mehdi Mohammadzadeh
4 Koliha, Jerry J.
4 Lam, Tsit-Yuen
4 Lee, Tsiu-Kwen
4 Lešnjak, Gorazd
4 Liu, Wanquan
4 Lv, Lingling
4 Markiewicz, Augustyn
4 Nielsen, Pace P.
4 Prasad, K. Manjunatha
4 Qin, Yonghui
4 Tam, Bit-Shun
4 Višnjić, Jelena M.
...and 621 more Authors
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Cited in 155 Serials

264 Linear Algebra and its Applications
105 Linear and Multilinear Algebra
97 Applied Mathematics and Computation
27 Journal of Mathematical Analysis and Applications
27 Filomat
22 Journal of Algebra and its Applications
19 Communications in Algebra
12 Journal of Applied Mathematics and Computing
11 Journal of Computational and Applied Mathematics
10 Aequationes Mathematicae
10 Bulletin of the Malaysian Mathematical Sciences Society. Second Series
10 Frontiers of Mathematics in China
10 Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A: Matemáticas. RACSAM
9 Semigroup Forum
9 Journal of Mathematical Sciences (New York)
8 Computers & Mathematics with Applications
7 Proceedings of the American Mathematical Society
7 Journal of the Australian Mathematical Society
6 Czechoslovak Mathematical Journal
6 Computational and Applied Mathematics
6 Operators and Matrices
5 Journal of Algebra
5 Numerical Functional Analysis and Optimization
5 Quaestiones Mathematicae
5 International Journal of Computer Mathematics
5 Turkish Journal of Mathematics
5 Journal of Applied Mathematics
5 Mediterranean Journal of Mathematics
4 Indian Journal of Pure & Applied Mathematics
4 Mathematical Notes
4 Bulletin of the Iranian Mathematical Society
4 Mathematical and Computer Modelling
4 ELA. The Electronic Journal of Linear Algebra
4 Banach Journal of Mathematical Analysis
4 Journal of Mathematics
4 Open Mathematics
3 Bulletin of the Australian Mathematical Society
3 Communications in Mathematical Physics
3 Journal of the Franklin Institute
3 Nuclear Physics. B
3 Rocky Mountain Journal of Mathematics
3 Ukrainian Mathematical Journal
3 Integral Equations and Operator Theory
3 Transactions of the American Mathematical Society
3 Advances in Applied Clifford Algebras
3 Abstract and Applied Analysis
3 Journal of Inequalities and Applications
3 Complex Analysis and Operator Theory
3 Functional Analysis, Approximation and Computation
2 Archive for Rational Mechanics and Analysis
2 International Journal of Systems Science
2 Journal of Statistical Physics
2 Computing
2 Glasgow Mathematical Journal
2 Information Sciences
2 International Journal of Mathematics and Mathematical Sciences
2 Journal of Pure and Applied Algebra
2 Rendiconti del Circolo Matemàtico di Palermo. Serie II
2 Advances in Applied Mathematics
2 Communications in Statistics. Theory and Methods
2 Glasnik Matematički. Serija III
2 Algebra Colloquium
2 Mathematical Problems in Engineering
2 Soft Computing
2 Acta Mathematica Sinica. English Series
2 Lobachevskii Journal of Mathematics
2 Central European Journal of Mathematics
2 Hacettepe Journal of Mathematics and Statistics
2 International Electronic Journal of Algebra (IEJA)
2 Journal of Linear and Topological Algebra
2 International Journal of Applied and Computational Mathematics
2 AIMS Mathematics
1 The Canadian Journal of Statistics
1 Communications on Pure and Applied Mathematics
1 Discrete Applied Mathematics
1 Discrete Mathematics
1 International Journal of Mathematical Education in Science and Technology
1 Journal of Mathematical Physics
1 Mathematical Proceedings of the Cambridge Philosophical Society
1 Moscow University Mathematics Bulletin
1 Periodica Mathematica Hungarica
1 Mathematics of Computation
1 Algebra Universalis
1 Annals of the Institute of Statistical Mathematics
1 Annali di Matematica Pura ed Applicata. Serie Quarta
1 Annales Universitatis Mariae Curie-Skłodowska. Sectio A. Mathematica
1 BIT
1 Calcolo
1 Functional Analysis and its Applications
1 Publications Mathématiques
1 Journal of Functional Analysis
1 Journal of Soviet Mathematics
1 Journal of Statistical Planning and Inference
1 Kybernetika
1 Mathematica Slovaca
1 Monatshefte für Mathematik
1 Numerische Mathematik
1 Results in Mathematics
1 Revista Colombiana de Matemáticas
1 Revista de la Unión Matemática Argentina
...and 55 more Serials
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Cited in 43 Fields

726 Linear and multilinear algebra; matrix theory (15-XX)
189 Associative rings and algebras (16-XX)
183 Operator theory (47-XX)
103 Numerical analysis (65-XX)
79 Order, lattices, ordered algebraic structures (06-XX)
75 Functional analysis (46-XX)
37 Group theory and generalizations (20-XX)
24 Combinatorics (05-XX)
15 Systems theory; control (93-XX)
13 Statistics (62-XX)
10 Computer science (68-XX)
9 Category theory; homological algebra (18-XX)
9 \(K\)-theory (19-XX)
9 Ordinary differential equations (34-XX)
8 Operations research, mathematical programming (90-XX)
7 Commutative algebra (13-XX)
6 Quantum theory (81-XX)
6 Statistical mechanics, structure of matter (82-XX)
6 Information and communication theory, circuits (94-XX)
5 Number theory (11-XX)
4 History and biography (01-XX)
3 Functions of a complex variable (30-XX)
3 Probability theory and stochastic processes (60-XX)
2 Field theory and polynomials (12-XX)
2 Nonassociative rings and algebras (17-XX)
2 Several complex variables and analytic spaces (32-XX)
2 Special functions (33-XX)
2 Difference and functional equations (39-XX)
2 Approximations and expansions (41-XX)
2 Integral transforms, operational calculus (44-XX)
2 Integral equations (45-XX)
2 Convex and discrete geometry (52-XX)
2 Biology and other natural sciences (92-XX)
1 General and overarching topics; collections (00-XX)
1 Mathematical logic and foundations (03-XX)
1 Algebraic geometry (14-XX)
1 Measure and integration (28-XX)
1 Sequences, series, summability (40-XX)
1 Harmonic analysis on Euclidean spaces (42-XX)
1 Differential geometry (53-XX)
1 General topology (54-XX)
1 Mechanics of deformable solids (74-XX)
1 Game theory, economics, finance, and other social and behavioral sciences (91-XX)

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