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Complete positive group presentations

✍ Scribed by Patrick Dehornoy

Publisher: Elsevier Science
Year: 2003
Tongue: English
Weight: 517 KB
Volume: 268
Category: Article
ISSN: 0021-8693
DOI: 10.1016/s0021-8693(03)00326-0

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✍ Changqing Xu 📂 Article 📅 2004 🏛 Elsevier Science 🌐 English ⚖ 178 KB

An n × n real matrix A is called completely positive (CP) if it can be factored as A = B B (" " stands for transpose) where B is an m × n entrywise nonnegative matrix for some integer m. The smallest such number m is called the cprank of A. In this paper we present a necessary and sufficient conditi