摘要
设F,K为体,ChF表示F的特征;n∈Z+,GLn(F),SLn(F)分别表示F上的n阶一般线性群和n阶特殊线性群.PGLn(F),PSLn(F)分别表示F上的n阶射影一般线性群和n阶射影特殊线性群.文献[2]确定了域上PSLn(F)到PSLm(F)(n>m)的同态形式,得到了此时的同态是平凡的结论.在此基础上继续研究,使用与[2-3]类似的方法,得到了结论:当n>m、n≥3且ChK=2时PSLn(F)到PSLm(K)的同态是平凡的.
Let F and K be division rings, ChF be the characteristic of F, and n is a positive integer. GLn(F) and SL, (F) denote the general linear group and the special linear group of degree n over F, respectivly; PGLn (F) and PSL,(F) denote the projective general linear group and the projective special linear group of degree n over F, respectivly. When n 〉 m and F is a field, [ 2 ] determined the general form of group homomorphisms from PSLn (F) to PSLm(K). By using a method similar to those in [2] and [3], when n 〉m, n≥3 and ChK=2 it is shown that every group homomorphism from PSLn (F) to PSLm (K) is trivial.
出处
《黑龙江大学自然科学学报》
CAS
北大核心
2006年第2期239-241,共3页
Journal of Natural Science of Heilongjiang University
关键词
体
射影线性群
射影对合
同态
division ring
projective linear group
projective involution
homomorphism