Projections,Birkhoff Orthogonality and Angles in Normed Spaces

被引:0
|
作者
Chen Zhi-zhi1
机构
关键词
projection; norm; Birkhoff orthogonality; angle; Minkowski plane; duality;
D O I
10.13447/j.1674-5647.2011.04.009
中图分类号
O177.3 [线性空间理论(向量空间)];
学科分类号
摘要
Let X be a Minkowski plane,i.e.,a real two dimensional normed linear space.We use projections to give a definition of the angle Aq(x,y)between two vectors x and y in X,such that x is Birkhoff orthogonal to y if and only if Aq(x,y)= π 2.Some other properties of this angle are also discussed.
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页码:378 / 384
页数:7
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