<i>L</i>-Indistinguishability For <i>SL</i> (2)
<i>L</i>-Indistinguishability For <i>SL</i> (2)
The notion of L -indistinguishability, like many others current in the study of L -functions, has yet to be completely defined, but it is in our opinion important for the study of automorphic forms and of representations of algebraic groups. In this paper we study it for the simplest class …