Linear mappings preserving the copositive cone
نویسندگان
چکیده
منابع مشابه
Irreducible elements of the copositive cone
An element A of the n× n copositive cone C is called irreducible with respect to the nonnegative cone N if it cannot be written as a nontrivial sum A = C + N of a copositive matrix C and an elementwise nonnegative matrix N . This property was studied by Baumert [2] who gave a characterisation of irreducible matrices. We demonstrate here that Baumert’s characterisation is incorrect and give a co...
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ژورنال
عنوان ژورنال: Proceedings of the American Mathematical Society
سال: 2021
ISSN: 0002-9939,1088-6826
DOI: 10.1090/proc/15432