Inthispaper,theclassicalLiegroupapproachisextendedtofindsomeLiepointsymmetriesofdifferentialdifferenceequations.ItrevealsthattheobtainedLiepointsymmetriescanconstituteaKac-Moody-Virasoroalgebra.
理论物理通讯:英文版
2004年5期