报告主题： Computing approximate GCRDs of quaternion polynomials
报告人：Yang Zhang 教授 （加拿大曼尼托巴大学数学系）
报告时间：2018年11月15日（周四）10:00
报告地点：校本部G507
邀请人：王卿文 教授
主办部门：太阳成集团tyc33455数学系
报告摘要：Computing approximate great common divisors of polynomials is an active area in Symbolic-Numerical computing. In this talk, we outline some results on quaternion polynomials. These kinds of non-commutative polynomials have quite complicated algebraic properties. We have to redefine the resultants regarding to one-sided GCDs by using so-called double determinants. The main idea is to compute best rank approximation and construct approximate GCRDs.
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