Linear mappings approximately preserving orthogonality

被引:62
作者
Chmielinski, J [1 ]
机构
[1] Akad Pedag W Krakowie, Inst Matemat, PL-30084 Krakow, Poland
关键词
orthogonality preserving mappings; approximate orthogonality;
D O I
10.1016/j.jmaa.2004.09.011
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We consider the class of linear mappings, between real or complex inner product spaces, such that for each two orthogonal vectors in the domain their values are epsilon-thogonal in the target space. By epsilon-orthogonality (0 <=, E <= 1) we mean the relation u perpendicular to(epsilon) v double left right arrow vertical bar < u vertical bar v >vertical bar <= epsilon parallel to u parallel to parallel to v parallel to (c) 2004 Elsevier Inc. All rights reserved.
引用
收藏
页码:158 / 169
页数:12
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