23 citations · 98 across the 30 of their papers we have counts for
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math.CO2019★ 2 cited
Free flags over local rings and powering of high dimensional expanders
Tali Kaufman, Ori Parzanchevski
Powering the adjacency matrix of an expander graph results in a better expander of higher degree. In this paper we seek an analogue operation for high-dimensional expanders. We sho…
math.CO2019
Coboundary and cosystolic expansion from strong symmetry
Tali Kaufman, Izhar Oppenheim
Coboundary and cosystolic expansion are notions of expansion that generalize the Cheeger constant or edge expansion of a graph to higher dimensions. The classical Cheeger inequalit…