Abstract:
We show that the pattern ${x,x+y,xy}$ is partition regular
over the space of formal integer polynomials of degree at least one
with zero constant term, with primitive recursive bounds. This
provides a new proof for the partition regularity of ${x,x+y,xy}$ over
$\mathbb N$, which obtains the first primitive recursive bound.
https://arxiv.org/abs/2211.00766