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Highly Cited

2014

Highly Cited

2014

The concept of deploying a large number of antennas at the base station, often called massive multiple-input multiple-output… Expand

Highly Cited

2012

Highly Cited

2012

Saddle point systems arise widely in optimization problems with constraints. The utility of Schur complement approximation is now… Expand

Highly Cited

2006

Highly Cited

2006

In this work we investigate semigroups of operators acting on noncommutative L-spaces. We introduce noncommutative square… Expand

2006

2006

This paper investigates Schur-convexity of the complete symmetric function cr(x) = ∑ i1+...+in=r x i1 1 ...x in n and the… Expand

Highly Cited

2003

Highly Cited

2003

This paper addresses the joint design of transmit and receive beamforming or linear processing (commonly termed linear precoding… Expand

Highly Cited

2001

Highly Cited

2001

An ensemble Kalman filter may be considered for the 4D assimilation of atmospheric data. In this paper, an efficient… Expand

2000

2000

In this note it is proved that the integral arithmetic mean of a convex function is a Schur-convex function. Applications to… Expand

1998

1998

In this paper, we show that Schur-convex functions share some important properties with the ordinary convex functions. We apply… Expand

1983

1983

Majorization on the spectra of graphs is shown to be preserved under several operations, including addition, multiplication and… Expand

Highly Cited

1980

Highly Cited

1980

Although they play a fundamental role in nearly all branches of mathematics, inequalities are usually obtained by ad hoc methods… Expand