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math.CO2022
New High Dimensional Expanders from Covers
Yotam Dikstein
We present a new construction of high dimensional expanders based on covering spaces of simplicial complexes. High dimensional expanders (HDXs) are hypergraph analogues of expander…
math.CO2022★ 1 cited
Randomly twisted hypercubes -- between structure and randomness
Itai Benjamini, Yotam Dikstein, Renan Gross +1
Twisted hypercubes are generalizations of the Boolean hypercube, obtained by iteratively connecting two instances of a graph by a uniformly random perfect matching. Dudek et al. sh…