3 papers
math.CO2026
-almost cross--intersecting families for vector spaces
Dehai Liu, Jinhua Wang, Tian Yao
Let be an -dimensional vector space over the finite field , and denote the family of all -dimensional subspaces of . The families $\mat…
math.CO2025
-almost cross--intersecting families for finite sets
Dehai Liu, Kaishun Wang, Tian Yao
Two families and of -subsets of an -set are called -almost cross--intersecting if each member in (resp. ) is -…
math.CO2024
-almost -intersecting families for finite sets
Dehai Liu, Kaishun Wang, Tian Yao
A family of -subsets of an -set is called -almost -intersecting if each member is -disjoint with at most members. In this paper, we prove that, if…