Do there exist expanders with non-negative curvature ?
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In this talk I will briefly recall the framework of local weak limits of finite graphs introduced by I. Benjamini and O. Schramm
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In this talk I will briefly recall the framework of local weak limits of finite graphs introduced by I. Benjamini and O. Schramm
We confirm the long-standing prediction that c=e≈2.718 is the threshold for the emergence of a non-vanishing absolutely continuous part (extended states) at zero in the limiting spectrum of the