TY - JOUR AU - Will, Pierre TI - Lagrangian decomposability of some two-generator subgroups of $ \mathrm{PU}(2,1)$ JO - Comptes Rendus. Mathématique PY - 2005 SP - 353 EP - 358 VL - 340 IS - 5 PB - Elsevier UR - http://www.numdam.org/articles/10.1016/j.crma.2005.01.008/ DO - 10.1016/j.crma.2005.01.008 LA - en ID - CRMATH_2005__340_5_353_0 ER -