TY - JOUR AU - M. Atteia AU - M. Raïssouli TI - Self Dual Operators on Convex Functionals; Geometric Mean and Square Root of Convex Functionals JO - Journal of convex analysis PY - 2001 SP - 223 EP - 24 VL - 8 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JCA_2001_8_1_JCA_2001_8_1_a9/ ID - JCA_2001_8_1_JCA_2001_8_1_a9 ER -