numerical range

Articles containing keyword "numerical range":

OaM-02-08 » Numerical Radius Inequalities for Square-zero and Idempotent Operators (03/2008)
OaM-03-17 » Numerical ranges of restricted shifts and unitary dilations (06/2009)
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-04-07 » Limited approximation of numerical range of normal matrix (03/2010)
OaM-05-37 » Self-inversive matrix polynomials with semisimple spectrum on the unit circle (09/2011)
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-07-28 » Numerical ranges and compressions of Sn-matrices (06/2013)
MIA-16-52 » Unitarily invariant norms related to the numerical radius on B(H) (07/2013)
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-08-64 » Singular value inequalities for matrices with numerical ranges in a sector (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)
OaM-09-32 » An observation concerning boundary points of the numerical range (09/2015)
OaM-10-45 » The trace as an average over the unit sphere of a normed space with a 1-symmetric basis (09/2016)
OaM-10-49 » Crawford numbers of companion matrices (12/2016)
OaM-10-53 » Minkowski product of convex sets and product numerical range (12/2016)
OaM-10-58 » Pre-images of extreme points of the numerical range, and applications (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)
MIA-20-40 » Concave functions of partitioned matrices with numerical ranges in a sector (04/2017)
JMI-11-31 » Extension of determinantal inequalities of positive definite matrices (06/2017)
OaM-11-51 » Spectral sets for numerical range (09/2017)
OaM-11-62 » An observation about normaloid operators (09/2017)
OaM-11-69 » Lower bounds for the numerical radius (12/2017)
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)
MIA-21-75 » An extension of Hartfiel's determinant inequality (10/2018)
OaM-13-45 » A note on the maximal numerical range (09/2019)
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)
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-14-18 » On the numerical range and operator norm of V2 (03/2020)
OaM-14-62 » Topological properties of the block numerical range of operator matrices (12/2020)
OaM-15-26 » Numerical ranges encircled by analytic curves (03/2021)
MIA-24-71 » Numerical radius in Hilbert C✻ (10/2021)
OaM-15-93 » Maximal numerical range and quadratic elements in a C✻-algebra (12/2021)
JMI-15-97 » On a reverse of the Tan-Xie inequality for sector matrices and its applications (12/2021)
OaM-16-24 » Determinantal polynomials of a weighted shift matrix with palindromic geometric weights (06/2022)
OaM-16-26 » Generalizing the Ando-Hiai inequality for sectorial matrices (06/2022)
JMI-16-92 » Numerical ranges of sum of two weighted composition operators on the Hardy space H2 (12/2022)
OaM-17-14 » Numerical ranges of some Foguel operators (03/2023)
OaM-17-63 » Spectral inclusion property for a class of block operator matrices (12/2023)
OaM-18-20 » On Ando-Hiai type inequalities for sectorial matrices (06/2024)
OaM-18-25 » Multiplicatively numerical range-preserving maps (06/2024)