AbstractWe study some properties of Gram matrices with nonnegative inverse which lead to the constructions of obtuse cones. These constructions can find applications in optimization problems, e.g., in methods of convex feasibility problems or of convex minimization problems
AbstractThis paper concerns the cone of positive semidefinite matrices which have zeros in prescribe...
AbstractIn this article, a classical result of Cottle and Veinott characterizing least elements of p...
Abstract This note is a sequel to an earlier study (Nordström [7]) on convexity properties of the in...
AbstractWe study some properties of Gram matrices with nonnegative inverse which lead to the constru...
AbstractThis paper is concerned with necessary and sufficient conditions for the nonnegativity of Mo...
AbstractAn essential part of Cegielski’s [Obtuse cones and Gram matrices with non-negative inverse, ...
AbstractAn essential part of Cegielski’s [Obtuse cones and Gram matrices with non-negative inverse, ...
In this article, necessary and sufficient conditions for the cone nonnegativity of Moore–Penrose inv...
AbstractPositive operators on certain polyhedral cones with the property that the group inverse of t...
AbstractLet A be a nonnegative m × n matrix, and let b be a nonnegative vector of dimension m. Also,...
AbstractSome results are obtained relating topological properties of polyhedral cones to algebraic p...
AbstractConvexity properties of the inverse of positive definite matrices and the Moore–Penrose inve...
AbstractThe purpose of this paper is to provide a unified treatment from the geometric viewpoint of ...
AbstractThe positive cone K in a partially ordered Hilbert space is said to be obtuse with respect t...
AbstractIn this paper we characterize the nonnegative nonsingular tridiagonal matrices belonging to ...
AbstractThis paper concerns the cone of positive semidefinite matrices which have zeros in prescribe...
AbstractIn this article, a classical result of Cottle and Veinott characterizing least elements of p...
Abstract This note is a sequel to an earlier study (Nordström [7]) on convexity properties of the in...
AbstractWe study some properties of Gram matrices with nonnegative inverse which lead to the constru...
AbstractThis paper is concerned with necessary and sufficient conditions for the nonnegativity of Mo...
AbstractAn essential part of Cegielski’s [Obtuse cones and Gram matrices with non-negative inverse, ...
AbstractAn essential part of Cegielski’s [Obtuse cones and Gram matrices with non-negative inverse, ...
In this article, necessary and sufficient conditions for the cone nonnegativity of Moore–Penrose inv...
AbstractPositive operators on certain polyhedral cones with the property that the group inverse of t...
AbstractLet A be a nonnegative m × n matrix, and let b be a nonnegative vector of dimension m. Also,...
AbstractSome results are obtained relating topological properties of polyhedral cones to algebraic p...
AbstractConvexity properties of the inverse of positive definite matrices and the Moore–Penrose inve...
AbstractThe purpose of this paper is to provide a unified treatment from the geometric viewpoint of ...
AbstractThe positive cone K in a partially ordered Hilbert space is said to be obtuse with respect t...
AbstractIn this paper we characterize the nonnegative nonsingular tridiagonal matrices belonging to ...
AbstractThis paper concerns the cone of positive semidefinite matrices which have zeros in prescribe...
AbstractIn this article, a classical result of Cottle and Veinott characterizing least elements of p...
Abstract This note is a sequel to an earlier study (Nordström [7]) on convexity properties of the in...
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