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Paper detail

Extremal norms of graphs and matrices

In the recent years, the trace norm of graphs has been extensively studied under the name of graph energy. In this paper some of this research is extended to more general matrix norms, like the Schatten p-norms and the Ky Fan k-norms. Whenever possible the results are given both for graphs and general matrices. In various contexts a puzzling fact was observed: the Schatten p-norms are widely different for 1<=p<2 and for p>=2.

preprint2010arXivOpen access
Vladimir Nikiforov
math.CO
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Vladimir Nikiforov

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