Automatic Continuity of $\ast$-Representations for Discrete Twisted $C^{\ast }$-Dynamical Systems

In this paper, we will establish the relatively unknown result that every $\ast$-representation for a discrete twisted $C^{\ast }$-dynamical system $(G,A,\alpha ,\omega )$ is automatically contractive with respect to the $L^1$-norm on $C_c(G,A)$.