摘要: Let M be a compct submanifold of sphere SN, and M be Cliford torus imbedding in SN. If Spec0(M)=Spec0(M), and Specq(M)=Specq(M), then author can obtaid that M is isometric to M.
倪轶龙, 徐森林. THE SPECTRUM OF THE LAPLACE OPERATION ON COMPACT SUBMANIFOLDS[J]. 数学物理学报, 1997, 17(S1): 217-224.
Ni Yiliong, Xu Senlin. THE SPECTRUM OF THE LAPLACE OPERATION ON COMPACT SUBMANIFOLDS[J]. Acta mathematica scientia,Series A, 1997, 17(S1): 217-224.