On the oscillation of two partial difference equations

[摘要] This paper is concerned with two partial difference equations of the form A(m+1,n) + A(m,n+1) - A(m,n) + P(m,n)A(m-k,n-l) = 0 and A(m+1,n) + A(m,n+1) - A(m,n) + (i=1)Sigma(u) P-i(m,n)f(i)(A(m-ki,n-lt)) = 0 respectively. We obtain sufficient conditions for the oscillation of all solutions of these equations. (C) 1997 Academic Press.

[发布日期] 1997-02-15