Idempotent matrices of degree s and the weighting generalized inverse matrices over z qkz 次幂等矩阵及矩阵的加权广义逆
2.
Chapter one and chapter two use normal form of idempotent matrices and antisymmetric matrices over finite fields to construct cartesian authentication codes respectively 第一章、第二章分别利用幂等矩阵及反对称矩阵的标准型构造了卡氏认证码。