%0 Journal Article %A Yuji Akaike %A Naotsugu Chinen %A Kazuo Tomoyasu %T Perfectness of the Higson and Smirnov compactifications %J Colloquium Mathematicum %D 2007 %P 89-98 %V 107 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm107-1-9/ %R 10.4064/cm107-1-9 %G en %F 10_4064_cm107_1_9