| Publication | Date of Publication | Type |
|---|
| A divide-and-conquer method for constructing a pseudo-Jacobi matrix from mixed given data | 2023-07-13 | Paper |
| https://portal.mardi4nfdi.de/entity/Q6104066 | 2023-06-05 | Paper |
| Log-majorization Type Inequalities | 2023-04-25 | Paper |
| A reduction algorithm for reconstructing periodic Jacobi matrices in Minkowski spaces | 2022-03-03 | Paper |
| How to choose the signature operator such that the periodic pseudo-Jacobi inverse eigenvalue problem is solvable? | 2022-02-22 | Paper |
| An inverse eigenvalue problem for doubly periodic pseudo-Jacobi matrices | 2022-01-20 | Paper |
| A note on classes of structured matrices with elliptical type numerical range | 2021-12-10 | Paper |
| Generalized inverse spectral problem for pseudo-Jacobi matrices with mixed eigendata | 2021-05-31 | Paper |
| An inverse eigenvalue problem for modified pseudo-Jacobi matrices | 2021-02-11 | Paper |
| Approximating the eigenvalues and eigenvectors of birth and death matrices | 2021-01-07 | Paper |
| Kippenhahn curves of some tridiagonal matrices | 2020-11-02 | Paper |
| Reciprocal matrices: properties and approximation by a transitive matrix | 2020-05-04 | Paper |
| On the construction of real non-selfadjoint tridiagonal matrices with prescribed three spectra | 2020-03-03 | Paper |
| Remarks on anti-tridiagonal matrices | 2020-02-05 | Paper |
| Nearness results for real tridiagonal 2‐Toeplitz matrices | 2019-12-18 | Paper |
| An inverse eigenvalue problem for pseudo-Jacobi matrices | 2019-11-25 | Paper |
| A reducing approach for symmetrically sparse banded and anti-banded matrices | 2019-09-18 | Paper |
| Fermionic model with a non-Hermitian Hamiltonian | 2019-07-22 | Paper |
| Non-self-adjoint operators with real spectra and extensions of quantum mechanics | 2019-02-11 | Paper |
| The EMM and the Spectral Analysis of a Non Self-adjoint Hamiltonian on an Infinite Dimensional Hilbert Space | 2018-11-20 | Paper |
| Fields of Values of Linear Pencils and Spectral Inclusion Regions | 2018-11-14 | Paper |
| The Characteristic Polynomial of Linear Pencils of Small Size and the Numerical Range | 2018-11-14 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4686278 | 2018-10-10 | Paper |
| Approximations for von Neumann and Rényi entropies of graphs using the Euler-Maclaurin formula | 2018-09-05 | Paper |
| Structured distance to normality of tridiagonal matrices | 2018-05-30 | Paper |
| Determinantal inequalities for J-accretive dissipative matrices | 2018-03-06 | Paper |
| On the generalized free energy inequality | 2017-03-06 | Paper |
| Generalized Rayleigh quotients and generating vectors | 2017-02-20 | Paper |
| Products of Laurent operators and fields of values | 2016-09-01 | Paper |
| A Fiedler-type theorem for the determinant of J-positive matrices | 2016-05-11 | Paper |
| A note on the convexity of the indefinite joint numerical range | 2015-08-14 | Paper |
| An inverse indefinite numerical range problem | 2015-02-27 | Paper |
| Computing the numerical range of Krein space operators | 2015-02-25 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3189165 | 2014-09-09 | Paper |
| The numerical range of banded 2-Toeplitz operators in spaces with an indefinite metric | 2014-08-07 | Paper |
| Revisiting the inverse field of values problem | 2014-08-04 | Paper |
| Direct and inverse spectral problems for a class of non-self-adjoint periodic tridiagonal matrices | 2014-02-19 | Paper |
| An algorithm for constructing a pseudo‐Jacobi matrix from given spectral data | 2014-02-19 | Paper |
| Numerical ranges of quadratic operators in spaces with an indefinte metric | 2014-02-10 | Paper |
| Inverse spectral problems for structured pseudo-symmetric matrices | 2014-01-21 | Paper |
| Tsallis entropies and matrix trace inequalities in quantum statistical mechanics | 2014-01-14 | Paper |
| Krein space numerical ranges: compressions and dilations | 2013-11-05 | Paper |
| The numerical range of banded biperiodic Toeplitz operators | 2012-12-04 | Paper |
| Indefinite higher-rank numerical ranges | 2012-11-05 | Paper |
| Operator inequalities for J-contractions | 2012-10-29 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2906392 | 2012-09-05 | Paper |
| On a reverse Heinz-Kato-Furuta inequality | 2012-08-27 | Paper |
| Corrigendum: Inverse problems for pseudo-Jacobi matrices: existence and uniqueness results | 2012-07-11 | Paper |
| Numerical ranges of Toeplitz operators with matrix symbols | 2012-03-19 | Paper |
| A quasi-Jacobi form for \(J\)-normal matrices and inverse eigenvalue problems | 2012-03-19 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3101963 | 2011-12-01 | Paper |
| On the eigenvalues of principal submatrices of \(J\)-normal matrices | 2011-09-22 | Paper |
| The numerical range of linear operators on the 2-dimensional Krein space | 2011-09-09 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3013477 | 2011-07-18 | Paper |
| An inverse eigenvalue problem for periodic Jacobi matrices in Minkowski spaces | 2011-07-15 | Paper |
| Inverse problems for pseudo-Jacobi matrices: existence and uniqueness results | 2011-03-08 | Paper |
| Classes of non-Hermitian operators with real eigenvalues | 2011-02-10 | Paper |
| The boundary of the Krein space tracial numerical range, an algebraic approach and a numerical algorithm | 2010-10-26 | Paper |
| Further developments of Furuta inequality of indefinite type | 2010-06-23 | Paper |
| Analogs of Cauchy-Poincaré and Fan-Pall interlacing theorems for \(J\)-Hermitian and \(J\)-normal matrices | 2010-05-21 | Paper |
| Trace inequalities for logarithms and powers of J-Hermitian matrices | 2010-05-11 | Paper |
| On the Courant--Fischer theory for Krein spaces | 2009-03-17 | Paper |
| Product of diagonal entries of the unitary orbit of a 3-by-3 normal matrix | 2008-07-10 | Paper |
| Krein spaces numerical ranges and their computer generation | 2008-05-28 | Paper |
| The \(J\)-numerical range of a \(J\)-Hermitian matrix and related inequalities | 2008-05-15 | Paper |
| The Numerical Range of 2-Dimensional Krein Space Operators | 2008-04-03 | Paper |
| Shapes of numerical ranges of operators on a 3-dimensional Krein space | 2007-11-20 | Paper |
| An extension of Birkhoff's theorem with an application to determinants | 2007-10-05 | Paper |
| On the corners of certain determinantal ranges | 2007-09-13 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3596456 | 2007-08-31 | Paper |
| Tribute to Ruy Luís Gomes on his 100th birthday | 2006-01-03 | Paper |
| Inequalities for \(J\)-Hermitian matrices | 2005-10-10 | Paper |
| \(J\)-orthostochastic matrices of size \(3 \times 3\) and numerical ranges of Krein space operators | 2005-10-10 | Paper |
| Inequalities for quantum relative entropy | 2005-06-01 | Paper |
| Three observations on the determinantal range | 2005-06-01 | Paper |
| On the geometry of numerical ranges in spaces with an indefinite inner product | 2005-04-21 | Paper |
| On Generalized Numerical Ranges of Operators on an Indefinite Inner Product Space | 2004-09-28 | Paper |
| Numerical ranges of unbounded operators arising in quantum physics. | 2004-05-27 | Paper |
| Matrix inequalities in statistical mechanics. | 2003-12-03 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2776276 | 2003-01-09 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2765502 | 2002-08-04 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2765503 | 2002-08-04 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4527115 | 2002-07-28 | Paper |
| Generalized numerical ranges of permanental compounds arising from quantum systems of bosons | 2000-09-14 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4485493 | 2000-06-14 | Paper |
| Extremal matrices in certain determinantal inequalities | 2000-01-03 | Paper |
| On the dual of a result of Miranda and Thompson | 1998-11-02 | Paper |
| Numerical ranges in physics | 1998-06-11 | Paper |
| Determinant of the Sum of a Symmetric and a Skew-Symmetric Matrix | 1997-09-29 | Paper |
| Another proof of a conjecture of marcus on thec-numerical range | 1997-05-14 | Paper |
| Mathematical horizons: Light and darkness in Portugal in the 18th century | 1997-04-07 | Paper |
| Some Geometrical Properties of thec-Numerical Range of a Normal Matrix | 1995-02-09 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3140789 | 1994-07-13 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4293849 | 1994-07-10 | Paper |
| The validity of the Marcus-de Oliveira conjecture for essentially Hermitian matrices | 1994-05-16 | Paper |
| Some Results on the Numerical Range of a Derivation | 1993-12-20 | Paper |
| Product of diagonal elements of matrices | 1993-05-16 | Paper |
| A brief survey on the decomposable numerical range of matrices | 1993-01-12 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4011590 | 1992-09-27 | Paper |
| The numerical range and decomposable numerical range of matrices | 1992-06-25 | Paper |
| Some remarks on a conjecture of de Oliveira | 1988-01-01 | Paper |
| On the boundary of theC-numerical range of a normal matrix | 1988-01-01 | Paper |
| OnC-det spectral andC-det-convex matrices | 1988-01-01 | Paper |
| On a conjecture of G. N. de Oliveira on determinants | 1987-01-01 | Paper |
| On the determinant of certain strictly dissipative matrices | 1986-01-01 | Paper |
| Matrices satisfying a conjecture of G. N. de Oliveira on determinants | 1986-01-01 | Paper |
| Some analogies between the c-numerical range and a certain variation on this concept | 1986-01-01 | Paper |
| Nondifferentiabie points of ∂Wc(A) | 1986-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3754124 | 1986-01-01 | Paper |
| The determinant of the sum of two normal matrices with prescribed eigenvalues | 1985-01-01 | Paper |
| On the evaluation of permanents | 1982-01-01 | Paper |
