64 citations · 124 across the 14 of their papers we have counts for
Showing 2013Show all
2 papers · 1 filter
math.CO2013
Partition regularity of a system of De and Hindman
Ben Barber
We prove that a certain matrix, which is not image partition regular over R near zero, is image partition regular over N. This answers a question of De and Hindman.
math.CO2013
Partition regularity with congruence conditions
Ben Barber, Imre Leader
An infinite integer matrix A is called image partition regular if, whenever the natural numbers are finitely coloured, there is an integer vector x such that Ax is monochromatic. G…