简介:WeproposeanalgorithmtoderivetautologicalrelationsfromPixtonrelations.Wecarryoutthisalgorithmexplicitlytoderivesomeresultsingenus0,1,2,3andanalyzethepossibilitytogeneralizetohighergenera.Asanapplication,someresultsaboutreconstructionofGromov-Witteninvariantscanbederived.