摘要
It is proved that neither G9(Q) nor G11(Q) is a subgroup of K2(Q)which confirms two special cases of a conjecture proposed by Browkin, J. (LectureNotes in Math., 966, Springer-Verlag, New York, Heidelberg, Berlin, 1982, 1-6).
It is proved that neither G9(Q) nor G11(Q) is a subgroup of K2(Q)which confirms two special cases of a conjecture proposed by Browkin, J. (LectureNotes in Math., 966, Springer-Verlag, New York, Heidelberg, Berlin, 1982, 1-6).