题目：Constructing permutation polynomials over finite fields 

　　报告人：Prof.  Qiang Wang  (Carleton University) 

　　时间： 2017年3月15日（星期三）, 上午9:30-11:00 

　　地点：中国科学院信息工程研究所3号楼3101室 

　　Abstract: 

　　A permutation polynomial (PP) f over a finite field is a nonzero polynomial that acts as a permutation of the elements of the field, i.e., the map $x \rightarrow f(x)$ is one-to-one. Equivalently, the size of the value set of $f$ is the extreme case. The study of permutation polynomials over a finite field goes back to 19th century when Hermite and later Dickson pioneered this area of research.  

　　In recent years, permutation polynomials have attracted a lot of attention due to their applications in many areas of science and engineering.  As a consequence, a lot of progress have been made recently by many researchers. In this talk I will report some of recent results on constructing PPs.   

　　Bio: 

　　王强， 加拿大卡尔顿大学（Carleton University）数学及统计系教授。 加拿大纽芬兰纪念大学（Memorial University of Newfoundland）获得数学博士学位。 2010年曾在清华大学高等研究所做访问学者。主要研究方向是有限域及其应用。 在国际数学期刊发表论文多篇。