Results 191 to 200 of about 305 (227)
Some of the next articles are maybe not open access.
Linear preserves of logarithm majorization
2023Summary: Let \(X\), \(Y\in \mathbb{R}^n\), \(X\), \(Y>0\), we say \(X\) logarithm majorized by \(Y\), written \(X\prec_{\log} Y\) if \(\log X\prec \log Y\). Let \(M_{nm}^+\) be the collection of matrices with positive entries. For \(X\), \(Y\in M_{nm}^+\), it is said that \(X\) is \textit{logarithm column (row) majorized} by \(Y\), and is denoted as ...
Mohammadhasani, Ahmad +2 more
openaire +2 more sources
Linear Preservers of Quadratic Operators
Mediterranean Journal of Mathematics, 2016zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Oudghiri, Mourad, Souilah, Khalid
openaire +2 more sources
Normal-Preserving Linear Mappings
Canadian Mathematical Bulletin, 1994AbstractLet H be a Hilbert space, dim H ≥ 3, and B(H) the algebra of all bounded linear operators on H. We characterize bijective linear mappings on B(H) that preserve normal operators.
Brešar, Matej, Šemrl, Peter
openaire +1 more source
Strong Linear Preservers of Dense Matrices
Bulletin of the Iranian Mathematical Society, 2018zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Motlaghian, Sara M. +2 more
openaire +2 more sources
Privacy-preserving linear programming
Optimization Letters, 2010zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources
Non-Linear Spectrum-Preserving Maps
Bulletin of the London Mathematical Society, 2000Summary: Let \({\mathcal M}_n\) denote the space of complex \(n\times n\) matrices, and let \(\Omega_n\) denote the spectral unit ball of \({\mathcal M}_n\), namely the set of matrices in \({\mathcal M}_n\) whose eigenvalues lie within the open unit disc. As a step towards the eventual classification of the holomorphic automorphisms of \(\Omega_n\), we
Baribeau, Line, Ransford, Thomas
openaire +2 more sources
On Almost Interval Preserving Linear Operators
Siberian Mathematical Journal, 2022In this paper, the author obtained an analogous description of \(AM\)-compact and compact almost interval preserving linear operators in quasi-Banach lattices. She established one structural property of almost interval preserving operators which is in its own right.
openaire +1 more source
K -POTENT PRESERVING LINEAR MAPS
Acta Mathematica Scientia, 2002zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hou, Shengzhao, Hou, Jinchuan
openaire +2 more sources