OaM-01-24 |
» Higher-rank numerical ranges of unitary and normal matrices
(09/2007) |

OaM-02-08 |
» Numerical Radius Inequalities for Square-zero and Idempotent Operators
(03/2008) |

OaM-02-16 |
» Higher-rank numerical range in infinite-dimensional Hilbert space
(06/2008) |

OaM-02-20 |
» Davis-Wielandt shells of operators
(09/2008) |

JMI-02-45 |
» Norm and numerical radius inequalities for a product of two linear operators in Hilbert spaces
(12/2008) |

JMI-03-01 |
» *Q*-norm inequalities for sequences of Hilbert space operators
(03/2009) |

OaM-03-21 |
» Essentially hermitian matrices and inclusion relations of *C*-numerical ranges
(09/2009) |

JMI-03-35 |
» Characterization of the norm triangle equality in pre-Hilbert *C*^{✻}-modules and applications
(09/2009) |

OaM-04-05 |
» On operators with large self-commutators
(03/2010) |

OaM-04-14 |
» Operator radii and unitary operators
(06/2010) |

OaM-06-09 |
» Maps preserving peripheral spectrum of Jordan products of operators
(03/2012) |

OaM-06-41 |
» The possible shapes of numerical ranges
(09/2012) |

OaM-07-11 |
» The numerical radii of weighted shift matrices and operators
(03/2013) |

OaM-07-16 |
» Numerical radius and distance from unitary operators
(06/2013) |

MIA-16-52 |
» Unitarily invariant norms related to the numerical radius on *B(H)*
(07/2013) |

OaM-07-47 |
» Normal matrix compressions
(12/2013) |

OaM-07-48 |
» Matrices with defect index one
(12/2013) |

OaM-08-39 |
» Pre-images of boundary points of the numerical range
(09/2014) |

OaM-08-51 |
» The block numerical range of analytic operator functions
(12/2014) |

OaM-09-04 |
» Algebraic properties of the set of operators with 0 in the closure of the numerical range
(03/2015) |

OaM-09-19 |
» C^{∗}-envelopes of Jordan operator systems
(06/2015) |

MIA-18-68 |
» Numerical radius inequalities associated with the Cartesian decomposition
(07/2015) |

OaM-09-32 |
» An observation concerning boundary points of the numerical range
(09/2015) |

MIA-19-47 |
» A Fiedler-type theorem for the determinant of *J*-positive matrices
(04/2016) |

OaM-10-36 |
» The correlation numerical range and trace-positive complex polynomials
(09/2016) |

OaM-10-45 |
» The trace as an average over the unit sphere of a normed space with a 1-symmetric basis
(09/2016) |

OaM-10-58 |
» Pre-images of extreme points of the numerical range, and applications
(12/2016) |

JMI-10-83 |
» Numerical radius inequalities for Hilbert space operators
(12/2016) |

OaM-11-12 |
» Numerical ranges of the product of operators
(03/2017) |

OaM-11-15 |
» On the normalized numerical range
(03/2017) |

OaM-11-18 |
» Pseudospectrum of an element of a Banach algebra
(03/2017) |

OaM-11-51 |
» Spectral sets for numerical range
(09/2017) |

OaM-11-62 |
» An observation about normaloid operators
(09/2017) |

OaM-12-15 |
» On the block numerical range of operators on arbitrary Banach spaces
(03/2018) |

OaM-12-16 |
» Scalar approximants of quadratic operators with applications
(03/2018) |

JMI-12-19 |
» Maximal numerical range of a compact set and applications to some Dragomir's inequalities
(03/2018) |

OaM-12-26 |
» Sharpening some classical numerical radius inequalities
(06/2018) |

JMI-12-33 |
» Some generalizations of numerical radius on off-diagonal part of *2 × 2* operator matrices
(06/2018) |

JMI-12-76 |
» On the inverse power inequality for the Berezin number of operators
(12/2018) |

OaM-13-37 |
» Numerical radius inequalities related to the geometric means of negative power
(06/2019) |

OaM-13-45 |
» A note on the maximal numerical range
(09/2019) |

MIA-22-83 |
» Operator inequalities via geometric convexity
(10/2019) |

OaM-13-72 |
» Constant norms and numerical radii of matrix powers
(12/2019) |

OaM-13-77 |
» On the maximal numerical range of a hyponormal operator
(12/2019) |

JMI-13-68 |
» Further inequalities for the numerical radius of Hilbert space operators
(12/2019) |

JMI-13-79 |
» Complete refinements of the Berezin number inequalities
(12/2019) |

OaM-14-06 |
» Inverse continuity of the numerical range map for Hilbert space operators
(03/2020) |

OaM-14-07 |
» Operators with minimal pseudospectra and connections to normality
(03/2020) |

OaM-14-08 |
» Some new operator inequalities
(03/2020) |

OaM-14-18 |
» On the numerical range and operator norm of *V*^{2}
(03/2020) |

MIA-23-55 |
» Operator norm and numerical radius analogues of Cohen's inequality
(04/2020) |

MIA-23-76 |
» Bounds of numerical radius of bounded linear operators using *t*-Aluthge transform
(07/2020) |

MIA-23-80 |
» New norm equalities and inequalities for certain operator matrices
(07/2020) |

MIA-23-85 |
» Cauchy-Schwarz type inequalities and applications to numerical radius inequalities
(07/2020) |

OaM-14-62 |
» Topological properties of the block numerical range of operator matrices
(12/2020) |

MIA-24-12 |
» Sharp inequalities for the numerical radius of Hilbert space operators and operator matrices
(01/2021) |

OaM-15-26 |
» Numerical ranges encircled by analytic curves
(03/2021) |

MIA-24-28 |
» Joint numerical radius of spherical Aluthge transforms of tuples of Hilbert space operators
(04/2021) |

MIA-24-32 |
» Approximate ω-orthogonality and ω-derivation
(04/2021) |

OaM-15-33 |
» Preservers of the *c*-numerical radius of operator jordan semi-triple products
(06/2021) |

OaM-15-38 |
» Isoclinic subspaces and quantum error correction
(06/2021) |

OaM-15-67 |
» Approximation of the numerical range of polynomial operator matrices
(09/2021) |

JMI-15-77 |
» A Chain of numerical radius inequalities in complex Hilbert space
(09/2021) |

MIA-24-71 |
» Numerical radius in Hilbert *C*^{✻}
(10/2021) |

OaM-15-76 |
» On generalized Davis-Wielandt radius inequalities of semi-Hilbertian space operators
(12/2021) |

OaM-15-81 |
» Generalized numerical radius and related inequalities
(12/2021) |

OaM-15-86 |
» Revisiting the Grüss inequality
(12/2021) |

OaM-15-89 |
» Some general quadratic numerical radius inequalities for the off-diagonal parts of 2 ⨉ 2 block operator matrices
(12/2021) |

OaM-15-90 |
» Davis-Wielandt-Berezin radius inequalities via Dragomir inequalities
(12/2021) |

OaM-15-93 |
» Maximal numerical range and quadratic elements in a *C*^{✻}-algebra
(12/2021) |

OaM-16-19 |
» Buzano, Kreĭn and Cauchy-Schwarz inequalities
(03/2022) |

OaM-16-24 |
» Determinantal polynomials of a weighted shift matrix with palindromic geometric weights
(06/2022) |

OaM-16-27 |
» Gaps between some spectral characteristics of direct sum of Hilbert space operators
(06/2022) |

JMI-16-31 |
» Some refinements of numerical radius inequalities for 2 × 2 operator matrices
(06/2022) |

JMI-16-39 |
» Some generalized numerical radius inequalities for Hilbert space operators
(06/2022) |

JMI-16-60 |
» Estimates for the numerical radius of *n × n* operator matrices
(09/2022) |

OaM-16-75 |
» Numerical radii of weighted shift operators using determinantal polynomials
(12/2022) |

OaM-17-14 |
» Numerical ranges of some Foguel operators
(03/2023) |

OaM-17-18 |
» Further refinements of some numerical radius inequalities for operators
(03/2023) |

JMI-17-17 |
» Norm-parallelism of Hilbert space operators and the Davis-Wielandt Berezin number
(03/2023) |

MIA-26-27 |
» New orders among Hilbert space operators
(04/2023) |

OaM-17-22 |
» Maximal numerical range of the bimultiplication *M*_{2, A, B}
(06/2023) |

OaM-17-24 |
» Inequalities for the weighted *A*-numerical radius of semi-Hilbertian space operators
(06/2023) |

OaM-17-39 |
» Computing the *S*-numerical ranges of differential operators
(09/2023) |

OaM-17-40 |
» A note on the *A*-spectrum of *A*-bounded operators
(09/2023) |

OaM-17-50 |
» Further refinements of Davis-Wielandt radius inequalities
(09/2023) |

OaM-17-56 |
» On joint numerical radius of operators and joint numerical index of a Banach space
(09/2023) |

JMI-17-64 |
» Numerical radius of products of special matrices
(09/2023) |