\input zb-basic \input zb-ioport \iteman{io-port 04187039} \itemau{Abramov, S.A.} \itemti{Rational solutions of linear differential and difference equations with polynomial coefficients.} \itemso{U.S.S.R. Comput. Math. Math. Phys. 29, No.6, 7-12 (1989); translation from Zh. Vychisl. Mat. Mat. Fiz. 29, No.11, 1611-1620 (1989).} \itemab See the review in Zbl 0695.65051. \itemrv{~} \itemcc{} \itemut{linear differential equations; linear difference equations; symbolic and algebraic computation; rational solution; polynomial coefficients} \itemli{doi:10.1016/S0041-5553(89)80002-3} \end