本原不可幂定号有向图的基与广义基.pdf

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8、RACTGraphtheoryisaveryimportantfoundationalquestionincombinatorialmathematics,ithasawideapplicationinmanysubjectsaseconomics!Physics,Chemistry,computer,sociologyandsoon.Thereareonetoonecorrespondingrelationbetweenthesigneddirectedgraphandsignpatternmatrix.Sotheresearchofsignpa

9、tternmatrixbutalsotheneedofsocialdevelopment.Inthispaper,westudythebasesandthelocalbasesofsignpatternmatrix,andwegivetheboundarylineofseveralkindsofprimitivenon-powerfulsigneddirectedgraph'sbase.Intherstchapter,weintroducethehistoryofdevelopmentonthesignpatternma-trix,therese

10、archprogressofthesigneddigraphs,andsomebasicknowledge,maincon