報告時間:2024年6月17日(星期一)16:00-17:00
報告地點:翡翠湖校區(qū)科教樓B1710室
報 告 人:Patrick Solé 教授
工作單位:愛克斯馬賽大學
舉辦單位:數(shù)學學院
報告簡介:
Hadamard codes over finite rings are explored wrt their covering radius for the chinese euclidean distance. Generalized bent sequences, when they exist, provide a lower bound. Upper bounds are obtained by considering a spherical code attached to Hadamard matrices of Butson type. Under mild hypotheses, this code is spherical 2-design, which yields upper bound on its covering radius on the sphere. This bound, in turn, gives an upper bound on the covering radius of the Hadamard codes.
報告人簡介:
Patrick Solé,法國愛克斯馬賽大學教授,國際著名的代數(shù)編碼與密碼學專家,是有限環(huán)上編碼理論的開拓者與奠基人之一,研究領(lǐng)域包括代數(shù)組合、代數(shù)圖論、代數(shù)編碼、離散數(shù)學、格的構(gòu)造、模形式等方面,發(fā)表 SCI期刊論文 200 余篇,發(fā)表國際學術(shù)會議論文80余篇,出版英文學術(shù)專著5本。