Numerical Range Of Some Doubly Stochastic Matrices
Applied Mathematics and Computation(2013)
摘要
A classification of all possible shapes is given for numerical ranges of 4 x 4 doubly stochastic matrices. The tests determining the shape are also provided, along with illustrating examples. (C) 2013 Elsevier Inc. All rights reserved.
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关键词
Numerical range,Doubly stochastic matrices
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