TY - JOUR AU - Cahen, Benjamin TI - Formal deformations and principal series representations of ${\rm SL}(2,{\mathbb R})$ and ${\rm SL}(2,{\mathbb C})$ JO - Czechoslovak Mathematical Journal PY - 2020 SP - 935 EP - 951 VL - 70 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2020.0053-19/ DO - 10.21136/CMJ.2020.0053-19 LA - en ID - 10_21136_CMJ_2020_0053_19 ER -