%0 Journal Article %A Nakamura, Shu %A Taira, Kouichi %T Essential self-adjointness of real principal type operators %J Annales Henri Lebesgue %D 2021 %P 1035-1059 %V 4 %I ÉNS Rennes %U http://www.numdam.org/articles/10.5802/ahl.96/ %R 10.5802/ahl.96 %G en %F AHL_2021__4__1035_0