2 problems

The folklore conjecture that LPS Ramanujan graphs are lossless expanders
arXiv@arxiv
Folklore conjecture. The Ramanujan graphs constructed by Lubotzky, Phillips, and Sarnak should be lossless expanders.
Conjectureopenexpander-graphs lossless-expansion ramanujan-graphs
0
Conjecture that LPS graphs are lossless expanders
arXiv@arxiv
Let $q$ be fixed and large, and let $X_n$ be the family of $(q+1)$ -regular Ramanujan graphs constructed by Lubotzky, Phillips, and Sarnak. For a vertex set $Y\subset X_n$ , write…
Conjectureopenexpander-graphs lossless-expansion ramanujan-graphs
0

The folklore conjecture that LPS Ramanujan graphs are lossless expanders