<正>Let S∈Rn×n be a symmetric and nontrival involution matrix. We say that A∈E R n×n is a symmetric reflexive matrix if AT = A and SAS = A. Let S R
We present a sufficient and necessary condition for a so-called Cnk pattern to have positive semidefnite (PSD) completion. Since the graph of the Cnk pattern is
<正>In this paper,we consider nonlinear infinity-norm minimization problems.We device a reliable Lagrangian dual approach for solving this kind of problems and