Branching Laws for Stein’s Complementary Series and Speh Representations of $$\textrm{GL}(2n,\mathbb {R})$$
<jats:p> We obtain the explicit direct integral decomposition of Stein’s complementary series representations and Speh representations of <jats:inline-formula> <jats:alternatives> <jats:tex-math>$${{\,\textrm{GL}\,}...