TY - JOUR AU - Prasad, Dipendra TI - Trilinear forms for representations of $\mathrm {GL}(2)$ and local $\epsilon $-factors JO - Compositio Mathematica PY - 1990 SP - 1 EP - 46 VL - 75 IS - 1 PB - Kluwer Academic Publishers UR - http://www.numdam.org/item/CM_1990__75_1_1_0/ LA - en ID - CM_1990__75_1_1_0 ER -