Undecidable and decidable restrictions of Hilbert's Tenth Problem: images of polynomials vs. images of exponential functions.

Mihai Prunescu Undecidable and decidable restrictions of Hilbert's Tenth Problem: images of polynomials vs. images of exponential functions. 14-19 2006 52 Math. Log. Q. 1 http://dx.doi.org/10.1002/malq.200510013 db/journals/mlq/mlq52.html#Prunescu06