%0 Journal Article %A G. G. Islamov %T On the question of extended convexity of Green operator %J Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta %D 2012 %P 60-61 %N 1 %U http://geodesic.mathdoc.fr/item/IIMI_2012_1_a25/ %G ru %F IIMI_2012_1_a25