%0 Journal Article %A Sakasai, Takuya %T Johnson-Morita theory in mapping class groups and monoids of homology cobordisms of surfaces %B Winter Braids VI (Lille, 2016) %A Collectif %S Winter Braids Lecture Notes %Z talk:4 %D 2016 %P 1-25 %I Winter Braids School %U http://www.numdam.org/articles/10.5802/wbln.15/ %R 10.5802/wbln.15 %G en %F WBLN_2016__3__A4_0