Negative answer to the conjecture on the convexity of the greatest eigenvalue

被引:1
作者
Liu, HW [1 ]
Liu, SY [1 ]
机构
[1] Xidian Univ, Dept Appl Math, Xian, Peoples R China
基金
中国国家自然科学基金;
关键词
convex functions; matrix-valued functions; greatest eigenvalue;
D O I
10.1023/A:1017548614213
中图分类号
C93 [管理学]; O22 [运筹学];
学科分类号
070105 [运筹学与控制论]; 12 [管理学]; 1201 [管理科学与工程]; 1202 [工商管理学]; 120202 [企业管理];
摘要
In this note, we show by a counterexample that the conjecture of Seeger on the convexity of the greatest eigenvalue of a real symmetric matrix-valued function (alpha (ij)(u))(nxn) does not hold.
引用
收藏
页码:677 / 679
页数:3
相关论文
共 2 条
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[2]
WHEN IS THE GREATEST EIGENVALUE OF A PARAMETRIZED SYMMETRICAL MATRIX A CONVEX FUNCTION OF THE PARAMETER [J].
YE, DY .
LINEAR ALGEBRA AND ITS APPLICATIONS, 1992, 169 :103-109