Jian Cui and Jianlong Chen Anhui Normal University, Southeast University
Abstract : A ring $R$ is called linearly McCoy if whenever linear polynomials $f(x),~g(x) \in R[x]\backslash \{0\}$ satisfy $f(x)g(x)=0$, there exist nonzero elements $r,~s\in R$ such that $f(x)r=sg(x)=0$. In this paper, extension properties of linearly McCoy rings are investigated. We prove that the polynomial ring over a linearly McCoy ring need not be linearly McCoy. It is shown that if there exists the classical right quotient ring $Q$ of a ring $R$, then $R$ is right linearly McCoy if and only if so is $Q$. Other basic extensions are also considered.
