1 citations · 1 across the 2 of their papers we have counts for
2 papers
math.LO2026
Hindman and Owings-like theorems without the Axiom of Choice
José A. Guzmán-Vega, David J. Fernández Bretón, Eliseo Sarmiento Rosales
We investigate Hindman- and Owings-type Ramsey-theoretic statements in Zermelo-Fraenkel set theory without the Axiom of Choice, with some occasional extra assumptions (such as the…
math.LO2013★ 1 cited
Every strongly summable ultrafilter on is sparse
David J. Fernández Bretón
We investigate the possibility of the existence of nonsparse strongly summable ultrafilters on certain abelian groups. In particular, we show that every strongly summable ultrafilt…