About the difficulty to prove the Baum Connes conjecture without coefficient for a non-cocompact lattice in $S{p}_4$ in a local field

Benben Liao

We introduce property $(T_{Schur},G,K)$ and prove it for some non-cocompact lattice in $S{p}_4$ in a local field of finite characteristic. We show that property $(T_{Schur},G,K)$ for…