EFFECTS OF SYMMETRY ON THE EXISTENCE OF EIGENVECTOR OF THE SCHRODINGER OPERATOR
对称性对Schrodinger算子特征向量存在性的影响

The properties of the trace of mains product in sl2(C) are studied. We provethat the discrete Schrodinger H with potential taking the form of Thue-Morse sequence orquasi-symmetry sequence has no eigenvectors in the space CO(Z).