Results 11 to 20 of about 53 (51)
THE GROTHENDIECK CONSTANT IS STRICTLY SMALLER THAN KRIVINE’S BOUND
The (real) Grothendieck constant ${K}_{G} $ is the infimum over those $K\in (0, \infty )$ such that for every $m, n\in \mathbb{N} $ and every $m\times n$ real matrix $({a}_{ij} )$ we have $$\begin{eqnarray*}\displaystyle \max _{\{ x_{i}\} _{i= 1}^{m} , \{
MARK BRAVERMAN +3 more
doaj +1 more source
Extensions of Three Matrix Inequalities to Semisimple Lie Groups
We give extensions of inequalities of Araki-Lieb-Thirring, Audenaert, and Simon, in the context ofsemisimple Lie groups.
Liu Xuhua, Tam Tin-Yau
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On the Spectral Norms of r -Circulant Matrices with the k -Fibonacci and k -Lucas Numbers [PDF]
In this paper, we consider the k -Fibonacci and k -Lucas sequences be r -circulant matrices. Afterwards, we give upper and lower bounds for the spectral norms of matrices A and B.
Shou-Qiang Shen, Jian-Miao Cen
core
. Replace certain edges of a directed graph by chains and consider the eect on the spectrum of the graph. It is shown that the spectral radius decreases monotonically with the expansion and that, for a strongly connected graph that is not a single cycle,
Hans Schneider +2 more
core +1 more source
Explicit Solutions For Interval Semidefinite Linear Programs
We consider the special class of semidefinite linear programs (IV P ) maximize trace CX subject to L ¯ A(X) ¯ U; where C; X; L; U are symmetric matrices, A is a (onto) linear operator, and ¯ denotes the Loewner (positive semidefinite) partial order.
Henry Wolkowicz
core
Convex analysis on the Hermitian matrices
There is growing interest in optimization problems with real symmetric matrices as variables. Generally the matrix functions involved are spectral: they depend only on the eigenvalues of the matrix.
A. S. Lewis
core
ON SPACES OF MATRICES WITH A BOUNDED NUMBER OF EIGENVALUES
Dedicated to Hans Schneider on the occasion of his seventieth birthday Abstract. The following problem, originally proposed by Omladic and Semrl [Linear Algebra Appl., 249:29{46 (1996)], is considered. Let k and n be positive integers such that k < n.
Nizar Radwan, Raphael Loewy
core
Some generalizations of inequalities for sector matrices. [PDF]
Yang C, Lu F.
europepmc +1 more source
A new localization set for generalized eigenvalues. [PDF]
Gao J, Li C.
europepmc +1 more source
On the Lawson-Lim means and Karcher mean for positive invertible operators. [PDF]
Liao W, Long P, Ren Z, Wu J.
europepmc +1 more source

