%0 Journal Article
%T THE MODIFIED DOUBLE-GRAPH METHOD FOR FINDING SYMBOLIC k-ORDER COFACTORS<br>求符号k阶余因式的变形双图法
%A Huang Ruji
%A <br>黄汝激
%J 电子与信息学报
%D 1993
%I 
%X The concepts of k-order modified double-graphs and k-order modified matrices are introduced. By using them two new expressions of graph determinant C(Y) and k-order cofactor Y (ij) are deduced. Then the modified double-graph method is presented for finding symbolic k-order cofactors. By applying it a multi-layer expansion of Y (ij) can be found directly and efficiently (having no special sign evaluation poblem), and it produces no cancellation terms. Hence it is superior to the previous methods.
%K Graph theory
%K Modified double-graph
%K Graph determinant
%K Symbolic k-order cofactor<br>图论
%K 变形双图
%K 图行列式
%K 符号k阶余因式
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=952807A75DE8CCFD&yid=D418FDC97F7C2EBA&vid=23CCDDCD68FFCC2F&iid=E158A972A605785F&sid=B79ACB6EBBFC9730&eid=0493D643315CD829&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=7