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Displaying 101 – 120 of 230

Some remarks on Toeplitz multipliers and Hankel matrices

Aleksander Pełczyński, Fyodor Sukochev (2006)

Studia Mathematica

Consider the set of all Toeplitz-Schur multipliers sending every upper triangular matrix from the trace class into a matrix with absolutely summable entries. We show that this set admits a description completely analogous to that of the set of all Fourier multipliers from H₁ into ℓ₁. We characterize the set of all Schur multipliers sending matrices representing bounded operators on ℓ₂ into matrices with absolutely summable entries. Next, we present a result (due to G. Pisier) that the upper triangular...

Some results on eigenvalues of nonnegative matrices

Miroslav Fiedler (1974)

Acta Universitatis Carolinae. Mathematica et Physica

Some results on matrices with prescribed diagonal elements, eigenvalues and singular values

Fernandes Miranda, M.E. (1979)

Portugaliae mathematica

Some results on matrix partial orderings and reverse order law.

Benitez, Julio, Liu, Xiaoji, Zhong, Jin (2010)

ELA. The Electronic Journal of Linear Algebra [electronic only]

Some results on the group inverse for block matrices over skew fields.

Bu, Changjiang, Zhao, Jiemei, Zhang, Kuize (2009)

ELA. The Electronic Journal of Linear Algebra [electronic only]

Some sharp $L^{2}$ inequalities for Dirac type operators.

Balinsky, Alexander, Ryan, John (2007)

SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]

Some stochastic comparison results for series and parallel systems with heterogeneous Pareto type components

Lakshmi Kanta Patra, Suchandan Kayal, Phalguni Nanda (2018)

Applications of Mathematics

We focus on stochastic comparisons of lifetimes of series and parallel systems consisting of independent and heterogeneous new Pareto type components. Sufficient conditions involving majorization type partial orders are provided to obtain stochastic comparisons in terms of various magnitude and dispersive orderings which include usual stochastic order, hazard rate order, dispersive order and right spread order. The usual stochastic order of lifetimes of series systems with possibly different scale...

Some subpolytopes of the Birkhoff polytope.

Marques de Sá, Eduardo (2006)

ELA. The Electronic Journal of Linear Algebra [electronic only]

Some theoretical results derived from polynomial numerical hulls of Jordan blocks.

Greenbaum, Anne (2004)

ETNA. Electronic Transactions on Numerical Analysis [electronic only]

Some trigonometric identities involving Fibonacci and Lucas numbers.

Bibak, Kh., Shirdareh Haghighi, M.H. (2009)

Journal of Integer Sequences [electronic only]

Some variations on the concept of the c-numerical range

Bebiano, Natália (1985/1986)

Portugaliae mathematica

SomeRremarks on a Combinatorial Problem

Josef Kaucký (1972)

Matematický časopis

Sous-groupes distingues du groupe unitaire et du groupe général linéaire d'un espace de Hilbert quaternionien.

Torgasev, Aleksandar (1981)

Publications de l'Institut Mathématique. Nouvelle Série

Sous-groupes distingués du groupe unitaire et du groupe général linéaire d'un espace de Hilbert

Pierre de de Harpe (1976)

Commentarii mathematici Helvetici

Spaces of constant rank matrices over $G F (2)$ .

Boston, Nigel (2010)

ELA. The Electronic Journal of Linear Algebra [electronic only]

Spaces of rank-2 matrices over GF(2).

Beasley, LeRoy B. (1999)

ELA. The Electronic Journal of Linear Algebra [electronic only]

Sparse recovery with pre-Gaussian random matrices

Simon Foucart, Ming-Jun Lai (2010)

Studia Mathematica

For an m × N underdetermined system of linear equations with independent pre-Gaussian random coefficients satisfying simple moment conditions, it is proved that the s-sparse solutions of the system can be found by ℓ₁-minimization under the optimal condition m ≥ csln(eN/s). The main ingredient of the proof is a variation of a classical Restricted Isometry Property, where the inner norm becomes the ℓ₁-norm and the outer norm depends on probability distributions.

Currently displaying 101 – 120 of 230

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Displaying 101 – 120 of 230

Some remarks on Toeplitz multipliers and Hankel matrices

Some results on eigenvalues of nonnegative matrices

Some results on matrices with prescribed diagonal elements, eigenvalues and singular values

Some results on matrix partial orderings and reverse order law.

Some results on the group inverse for block matrices over skew fields.

Some sharp $L^{2}$ inequalities for Dirac type operators.

Some stochastic comparison results for series and parallel systems with heterogeneous Pareto type components

Some subpolytopes of the Birkhoff polytope.

Some theoretical results derived from polynomial numerical hulls of Jordan blocks.

Some trigonometric identities involving Fibonacci and Lucas numbers.

Some variations on the concept of the c-numerical range

SomeRremarks on a Combinatorial Problem

Sous-groupes distingues du groupe unitaire et du groupe général linéaire d'un espace de Hilbert quaternionien.

Sous-groupes distingués du groupe unitaire et du groupe général linéaire d'un espace de Hilbert

Spaces of constant rank matrices over $G F (2)$ .

Spaces of rank-2 matrices over GF(2).

Sparse recovery with pre-Gaussian random matrices

Special forms of generalized inverses of row block matrices.

Special Similarity Transformations in Connection with the Quadrant Interlocking Factorisation Techniques

Specialization of quadratic and symmetric, bilinear forms, and a norm theorem

Currently displaying 101 – 120 of 230