%0 Journal Article %T The Eigen Distribution of an AND-OR Tree under Directional Algorithms %A Toshio Suzuki %A Ryota Nakamura %J IAENG International Journal of Applied Mathematics %D 2012 %I International Association of Engineers (IAENG) %U http://www.iaeng.org/IJAM/issues_v42/issue_2/IJAM_42_2_07.pdf