TY - JOUR AU - Borchers, H. J. TI - The generalized three circle - and other convexity theorems with application to the construction of envelopes of holomorphy JO - Annales de l'I.H.P. Physique théorique PY - 1977 SP - 31 EP - 60 VL - 27 IS - 1 PB - Gauthier-Villars UR - http://geodesic.mathdoc.fr/item/AIHPA_1977__27_1_31_0/ LA - en ID - AIHPA_1977__27_1_31_0 ER -