%0 Journal Article %A Johnson, Charles R. %A Harel, Yonatan %A Hillar, Christopher J. %A Groves, Jonathan M. %A Rault, Patrick X. %T Absolutely flat idempotents %J The electronic journal of linear algebra %D 2003 %P 190-200 %V 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/ELA_2003__10__a10/ %G en %F ELA_2003__10__a10