activity
20132026
most citedOn a numerical construction of doubly stochastic matrices with prescribed eigenvalues

2 citations · 5 across the 8 of their papers we have counts for

collaborators

8 papers

math.PR2026

Negative index, matchings, and nonnegative eigenvalues of tridiagonal stochastic matrices

Bassam Mourad, Issam Kaddoura, Hassan Issa

We study negative eigenvalues of stochastic matrices whose off-diagonal support is constrained by a sparse graph. The main tool is a matching-based inertia principle: i…

math.NA2022★ 2 cited

On a numerical construction of doubly stochastic matrices with prescribed eigenvalues

Kassem Rammal, Bassam Mourad, Hassan Abbas +1

We study the inverse eigenvalue problem for finding doubly stochastic matrices with specified eigenvalues. By making use of a combination of Dykstra's algorithm and an alternating…

math.FA2022★ 2 cited

Generalized Numerical Radius Inequalities for Schatten p-Norms

Jana Hamza, Hassan Issa

In this paper, we present various inequalities for generalized numerical radius of block matrices for Schatten p-norm. Moreover, we give a refinement of the triangle i…

math.FA2021

New applications to combinatorics and invariant matrix norms of an integral representation of natural powers of the numerical values

H. A. Issa, B. Mourad, H. Abbass

Let be the -th symmetric tensor power of . In \cite{IAM}, we have expressed the normalized trace of as an integral of the -th power…

math.CO2021

On an integral representation of the normalized trace of the -th symmetric tensor power of matrices and some applications

Hassan Issa, Hassan Abbas, Bassam Mourad

Let be an matrix and let be its -th symmetric tensor product. We express the normalized trace of as an integral of the -th powers of the…

math.FA2020★ 1 cited

Inequalities for the generalized numerical radius

H. Abbas, S. Harb, H. Issa

In the present paper, we provide several inequalities for the generalized numerical radius of operator matrices as introduced by A. Abu-omar and F. Kittaneh in [3]. We generalize t…

math.FA2018

The construction of -algebra by commutator method containing the Bergman projection on the unit ball

Hassan Issa

The manuscript is devoted to the construction of - algebras containing the Bergman projection on the unit ball of . We consider the -algebra $\…

math.CO2013

On The Doubly Stochastic Realization Of Spectra

Kassem Rammal, Bassam Mourad, Hassane Abbas +1

An -list of complex numbers with is said to be realizable if is the spectrum of nonnegative matrix and in this c…