On some variational problems in the theory of unitarily invariant norms and Hadamard products
نویسندگان
چکیده
منابع مشابه
On some variational problems in the theory of unitarily invariant norms and Hadamard products
We deal with two recent conjectures of R.-C. Li [Linear Algebra Appl. 278 (1998) 317– 326], involving unitarily invariant norms and Hadamard products. In the particular case of the Frobenius norm, the first conjecture is known to be true, whereas the second is still an open problem. In fact, in this paper we show that the Frobenius norm is essentially the only invariant norm which may comply wi...
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ژورنال
عنوان ژورنال: Linear Algebra and its Applications
سال: 2001
ISSN: 0024-3795
DOI: 10.1016/s0024-3795(00)00284-6