Department of Mathematics, Ningbo University, Ningbo, Zhejiang 315211, China;
Department of Mathematics, Ningbo University, Ningbo, Zhejiang 315211, China;
Department of Mathematics, Ningbo University, Ningbo, Zhejiang 315211, China;
评论; 对合; 直接证明; 多项式; 非零; 仿射; 矩阵;