108 citations · 197 across the 16 of their papers we have counts for
1 paper · 2 filters
Jacek Brodzki, Erik Guentner, Nigel Higson
In the 1980's Pierre Julg and Alain Valette, and also Tadeusz Pytlik and Ryszard Szwarc, constructed and studied a certain Fredholm operator associated to a simplicial tree. The op…