10 citations · 63 across the 24 of their papers we have counts for
Showing 2023 · math.COShow all
3 papers · 2 filters
math.CO2023
Swap cosystolic expansion
Yotam Dikstein, Irit Dinur
We introduce and study swap cosystolic expansion, a new expansion property of simplicial complexes. We prove lower bounds for swap coboundary expansion of spherical buildings and u…
math.CO2023
Coboundary and cosystolic expansion without dependence on dimension or degree
Yotam Dikstein, Irit Dinur
We give new bounds on the cosystolic expansion constants of several families of high dimensional expanders, and the known coboundary expansion constants of order complexes of homog…
math.CO2023
Bipartite unique-neighbour expanders via Ramanujan graphs
Ron Asherov, Irit Dinur
We construct an infinite family of bounded-degree bipartite unique-neighbour expander graphs with arbitrarily unbalanced sides. Although weaker than the lossless expanders construc…