On properties of univariate max functions at local maximizers
On properties of univariate max functions at local maximizers
复制标题
关于单变量最大函数在局部极大值处的性质
DOI:
10.1007/s11590-022-01872-y
复制
发表时间:
2022
影响因子:
1.6
通讯作者:
Overton, Michael L.
中科院分区:
文献类型:
--
作者:
Mitchell, Tim;Overton, Michael L.
More than three decades ago, Boyd and Balakrishnan established a regularity result for the two-norm of a transfer function at maximizers. Their result extends easily to the statement that the maximum eigenvalue of a univariate real analytic Hermitian matrix family is twice continuously differentiable, with Lipschitz second derivative, at all local maximizers, a property that is useful in several applications that we describe. We also investigate whether this smoothness property extends to max functions more generally. We show that the pointwise maximum of a finite set ofq-times continuously differentiable univariate functions must have zero derivative at a maximizer for, but arbitrarily close to the maximizer, the derivative may not be defined, even whenand the maximizer is isolated.
登录
查看更多内容
影响因子:
1.5
作者:
Mehrmann, Volker;Van Dooren, Paul M.
通讯作者:
Van Dooren, Paul M.
DOI:
10.1016/0024-3795(81)90106-3
发表时间:
2020-11
期刊:
--
影响因子:
--
作者:
Tzuong-Tsieng Moh
通讯作者:
Tzuong-Tsieng Moh
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
E. Mengi;M. Overton
通讯作者:
M. Overton
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
M. Overton;C. Gunturk;M. Gürbüzbalaban
通讯作者:
M. Gürbüzbalaban