Publisher Description

The sign-solvability of a linear system implies that the signs of the entries of the solution are determined solely on the basis of the signs of the coefficients of the system. That it might be worthwhile and possible to investigate such linear systems was recognised by Samuelson in his classic book Foundations of Economic Analysis. Sign-solvability is part of a larger study which seeks to understand the special circumstances under which an algebraic, analytic or geometric property of a matrix can be determined from the combinatorial arrangement of the positive, negative and zero elements of the matrix. The large and diffuse body of literature connected with sign-solvability is presented as a coherent whole for the first time in this book, displaying it as a beautiful interplay between combinatorics and linear algebra. One of the features of this book is that algorithms that are implicit in many of the proofs have been explicitly described and their complexity has been commented on.

Author Biography

Richard A. Brualdi is UWF Beckwith Bascom Professor of Mathematics at the University of Wisconsin, Madison.

Table of Contents

Preface; 1. Sign-solvability; Bibliography; 2. L-matrices; Bibliography; 3. Sign-solvability and digraphs; Bibliography; 4. S*-matrices; Bibliography; 5. Beyond S*-matrices; Bibliography; 6. SNS-matrices; Bibliography; 7. S2NS-matrices; Bibliography; 8. Extremal properties of L-matrices; Bibliography; 9. The inverse sign pattern graph; Bibliography; 10. Sign stability; Bibliography; 11. Related Topics; Bibliography; Master Bibliography; Index.

Review

"The book is well written and quite readable. It should become an indispensable reference for anyone intersted in questions related to sign solvability of linear systems." Peter M. Gibson, SIAM Review "...primarily for researchers in combinatorics and linear algebra, it should also be of interest to theoretical computer scientists, economists, physicists, chemists and engineers." Gerard Sierksma, Mathematical Review

Review Quote

"The book is well written and quite readable. It should become an indispensable reference for anyone intersted in questions related to sign solvability of linear systems." Peter M. Gibson, SIAM Review

Promotional "Headline"

The large and diffuse body of literature connected with sign-solvability is presented as a coherent whole for the first time in this book.

Description for Bookstore

The large and diffuse body of literature connected with sign-solvability is presented as a coherent whole for the first time in this book, displaying it as a beautiful interplay between combinatorics and linear algebra.

Description for Library

The large and diffuse body of literature connected with sign-solvability is presented as a coherent whole for the first time in this book, displaying it as a beautiful interplay between combinatorics and linear algebra.

Details