摘要
设C为线性化多项式的友矩阵,I为与C同阶的单位矩阵.通过分析C+I的结构,给出其可逆的充分必要条件,并基于此给出核与迹函数的核交为平凡的线性化多项式.
Let C be the companion matrix of a linearized polynomial and I be the identity matrix of the same order.We gave a necessary and sufficient condition fo r its reversibility by analyzing the structure of C+I,and based on this,we gave linearized polynomials whose kernel had trivial intersection with the kernel of trace function.
作者
金永
姜敬敬
JIN Yong;JIANG Jingjing(College of Science,Civil Aviation University of China,Tianjin 300300,China)
出处
《吉林大学学报(理学版)》
CAS
北大核心
2020年第1期86-89,共4页
Journal of Jilin University:Science Edition
基金
国家自然科学基金(批准号:11601515)
教育部人文社科基金(批准号:19YJC910001)
中国民航大学科研启动基金(批准号:2012QD05X)
关键词
有限域
迹函数
线性化多项式
finite field
trace function
linearized polynomial