5 Weak and strong convergence
5.1 The free group and its reduced algebra
We denote as \(\mathbb {F}_r= \langle g_1, \ldots , g_r \rangle \) the free group with \(r\) generators.
We denote as \(\mathbb {F}_r= \langle g_1, \ldots , g_r \rangle \) the free group with \(r\) generators.