Results 221 to 230 of about 3,969 (253)

K -POTENT PRESERVING LINEAR MAPS

Acta Mathematica Scientia, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hou, Shengzhao, Hou, Jinchuan
openaire   +2 more sources

Linear Mappings which Preserve Paracontractions

Monatshefte f�r Mathematik, 2003
A paracontraction (relative to a given norm \(\|\cdot \|\) on a vector space \({\mathbb C}^n\)) is a matrix \(A\in {\mathcal M}_n({\mathbb C})\) with the property that either \(Ax = x\) or \(\| Ax\| < \| x\|\). In this paper, the author proves that a linear surjective map \(\Phi :{\mathcal M}_n({\mathbb C})\rightarrow {\mathcal M}_n({\mathbb C ...
openaire   +1 more source

Linear Maps Preserving Matrix Discriminant

Journal of Mathematical Sciences
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

On Almost Interval Preserving Linear Operators

Siberian Mathematical Journal, 2022
In 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

Privacy-preserving linear programming

Optimization Letters, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Strong Stability Preserving General Linear Methods

Journal of Scientific Computing, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
IZZO, GIUSEPPE, Jackiewicz, Zdzislaw
openaire   +3 more sources

Discriminant preserving linear maps

Linear and Multilinear Algebra, 1979
Consider the n-square matrices over an infiniie field Kas an n 2-dimcnsional vector space M( n K). We determine all linear maps Ton M(n K) such that discriminant TX– discriminant Xfor all Xin M(n K)
openaire   +1 more source

Invertibility of linear f-order preservers

Journal of Mathematical Sciences, 2006
The notion of \(f\)-ordering on the matrix set \(M_{m,n}({\mathbb C})\) over the field of complex numbers \({\mathbb C}\) was defined by \textit{J. Hauke, A. Markiewicz} and \textit{T. Szulc} [Linear Algebra Appl. 332--334, 437--445 (2001; Zbl 0982.15027)] in the following way. Let \(f:[0,\infty)\to [0,\infty]\) be a bijective function satisfying \(f(0)
openaire   +2 more sources

Eigenvectors of Order-Preserving Linear Operators

Journal of the London Mathematical Society, 1998
Summary: Suppose that \(K\) is a closed, total cone in a real Banach space \(X\), that \(A: X\to X\) is a bounded linear operator which maps \(K\) into itself, and that \(A'\) denotes the Banach space adjoint of \(A\). Assume that \(r\), the spectral radius of \(A\), is positive, and that there exist \(x_0\neq 0\) and \(m\geq 1\) with \(A^m(x_0)= r^m ...
openaire   +2 more sources

Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce, Lorenzo Cohen, Karen M Mustian   +2 more
exaly