Title
Systems of nonlinear algebraic equations with unique solution
Abstract
We consider nonlinear algebraic systems of the form F ( x ) = Ax + p , x + n $F(x)= Ax+p, x\in \mathbb {R}^{n}_{+}$ , where A is a positive matrix and p a non-negative vector. They are involved quite naturally in many applications. For such systems we prove that a positive solution x exists and is unique. Moreover, we prove that x is an attraction point for three Newton-type iterations. A numerical experiment, concerning the computing times for such iterations, is presented. Previously known results, involving existence and uniqueness of solution for particular functions F and matrices A , are extended and generalized.
Year
DOI
Venue
2015
10.1007/s11075-014-9849-5
Numerical Algorithms
Keywords
Field
DocType
Nonlinear algebraic systems,Existence and uniqueness of the solution,Newton-type iterations,Attraction point
Discrete mathematics,Uniqueness,Mathematical optimization,Algebraic number,Nonlinear system,Of the form,Nonnegative matrix,Matrix (mathematics),Mathematical analysis,Algebraic equation,Mathematics
Journal
Volume
Issue
ISSN
68
2
1017-1398
Citations 
PageRank 
References 
1
0.43
4
Authors
3
Name
Order
Citations
PageRank
Anca Ciurte131.26
Sergiu Nedevschi21321126.37
Ioan Rasa3158.99