Combinatorial Bounds in Distal Structures
arXiv:2104.07769 · doi:10.1017/jsl.2023.74
Abstract
We provide polynomial upper bounds for the minimal sizes of distal cell decompositions in several kinds of distal structures, particularly weakly -minimal and -minimal structures. The bound in general weakly -minimal structures generalizes the vertical cell decomposition for semialgebraic sets, and the bounds for vector spaces in both -minimal and -adic cases are tight. We apply these bounds to Zarankiewicz's problem and sum-product bounds in distal structures.