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机译:Ext_A〜(4,)*(Z / 2,Z / 2)和Ext_A〜(5,)*(Z / 2,Z / 2)
Department of Mathematics, National Tsing Hua University, Hsinchu, Taiwan 30013;
steenrod algebra; adams spectral sequence;
机译:A类中的函子S〜(-1)(),Hom_A(-,B),-{directX} _AB和Ext_A〜n(-,B)
机译:确定Ext_A〜(5,*)(Z / 2,Z / 2)