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On the sum of k largest singular values of graphs and matrices

โœ Scribed by Vladimir Nikiforov


Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
164 KB
Volume
435
Category
Article
ISSN
0024-3795

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โœฆ Synopsis


In the recent years, the trace norm of graphs has been extensively studied under the name of graph energy. The trace norm is just one of the Ky Fan k-norms, given by the sum of the k largest singular values, which are studied more generally in the present paper. Several relations to chromatic number, spectral radius, spread, and to other fundamental parameters are outlined. Some results are extended to more general matrices.


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