A real symmetric tensor A=(ai1…im)∈R[m,n] is copositive(resp.,strictly copositive)if Axm≥0(resp.,Axm>0)for any nonzer......

文献[1]给出了判定阶数不大于5的对称矩阵偕正性的充分必要条件．本文在此基础上，进一步给出了它们严格偕正的条件，并提出了三个算法，它......

On Copositive In this paper the author writes a simple characterization for the best copositiveapproximation to elements......