Ky fan norm
A Ky-Fan standard is a special standard named after Ky Fan for the space of the matrices . There are a number of Ky-Fan norms that are indexed by a natural number .
definition
The -th Ky-Fan norm of a matrix is defined as
where is the -th singular value of .
Individual evidence
- ^ Rajendra Bhatia: Matrix analysis . Springer, New York 1997, ISBN 0-387-94846-5 , pp. 92 .