Article ID Journal Published Year Pages File Type
4599163 Linear Algebra and its Applications 2015 8 Pages PDF
Abstract

We show that the functions g   and gsgs introduced by Guo Wuwen in [4] are continuous and semialgebraic. We use this fact to prove that the set NnNn of ordered n-tuples of real numbers, realizable by nonnegative matrices, is a closed set.

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Related Topics
Physical Sciences and Engineering Mathematics Algebra and Number Theory
Preview
On continuity of Guo Wuwen function
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