cobordism group[数] 配边群
cobordism theory[数] 配边理论
cobordism ring[数] 配边环
complex cobordism[数] 复配边
cobordism theorem[数] 配边定理
cobordism class[数] 配边类
equivariant cobordism等变协边
their cobordism classes协边类
complex cobordism ring[数] 复配边环