Spectral gap and origami expanders by Arzhantseva, G, Kielak, D, de Laat, T, Sawicki, D

“…European Mathematical Society…”

On the smallest non-trivial quotients of mapping class groups by Kielak, D, Pierro, E

“…European Mathematical Society…”

Amenability of groups is characterized by Myhill's Theorem. With an appendix by Dawid Kielak by Bartholdi, L

“…European Mathematical Society …”