Title
Positive Semidefiniteness and Positive Definiteness of a Linear Parametric Interval Matrix.
Abstract
We consider a symmetric matrix, the entries of which depend linearly on some parameters. The domains of the parameters are compact real intervals. We investigate the problem of checking whether for each (or some) setting of the parameters, the matrix is positive definite (or positive semidefinite). We state a characterization in the form of equivalent conditions, and also propose some computationally cheap sufficient / necessary conditions. Our results extend the classical results on positive (semi-)definiteness of interval matrices. They may be useful for checking convexity or non-convexity in global optimization methods based on branch and bound framework and using interval techniques.
Year
DOI
Venue
2017
10.1007/978-3-319-61753-4_11
Studies in Systems, Decision and Control
Field
DocType
Volume
Discrete mathematics,Applied mathematics,Branch and bound,Convexity,Global optimization,Matrix (mathematics),Positive-definite matrix,Symmetric matrix,Positive definiteness,Interval arithmetic,Mathematics
Journal
100
ISSN
Citations 
PageRank 
2198-4182
1
0.37
References 
Authors
15
1
Name
Order
Citations
PageRank
Milan Hladík126836.33