Abstract
Superexpanders and Markov cotype in the work of Mendel and Naor
Keith Ball
University College London
We explain how a geometric invariant based on Green's functions for Markov chains provides a non-linear spectral calculus
which can be used to construct expander graphs for normed spaces other than Hilbert space, where the ordinary notion of
spectrum does not make sense.
which can be used to construct expander graphs for normed spaces other than Hilbert space, where the ordinary notion of
spectrum does not make sense.
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