报告名称:Linear codes and combinatorial t-designs
主办单位:英国立博官网中文版
报告专家:唐春明
专家所在单位:西华师范大学
报告时间:2020年8月7日15:00
报告地点:腾讯会议(会议ID:692 982 381)
专家简介:唐春明,西华师范大学数学与信息学院研究员。2012年博士毕业于北京大学。并先后在巴黎第八大学和香港科技大学从事博士后研究工作。主要研究包括密码、编码及其相关的数学理论。先后主持国家自然科学基金青年项目和面上项目各一项。发表研究论文60余篇,其中EI、SCI检索论文50余篇,代表性成果发表在国内外重要学术期刊《IEEE Transactions on Information Theory》、《Finite Fields and Their Applications》、《Designs, Codes and Cryptography》、《Science China》和《China Communications》等上面。曾访问多所国内外知名院校;目前,担任三个国际期刊的编委。
报告摘要:Coding theory and t-designs have close connections and interesting interplay. In this talk, we will first introduce a class of ternary linear codes, which do not satisfy the conditions of the Assmus-Mattson theorem and do not admit 2-homogeneous automorphism groups, and prove that they still hold 2-designs. Then I will focus on a generalized Assmus-Mattson theorem, and try to explain the motivation and elementary idea behind the generalization. In addition, we will report some recent results in the constructions of near MDS codes holding t-designs and linear codes supporting 4-designs.
邀请人:郑大彬