3 papers
math.CO2026
Tuza's Ryser-conjecture claim for four-partite hypergraphs with matching number two
Patrick White
We prove that every -partite -uniform hypergraph with matching number satisfies , where denotes the vertex-cover number. This confirms a claim mad…
math.CO2026
The small Davenport constant of the Heisenberg group of order 125
Patrick White
The small Davenport constant of a finite group is the maximal length of a product-one-free sequence over . For the exponent- Heisenberg group of…
math.CO2026
New bounds for double covers of the discrete box {0,1,2}^d
Patrick White
A proper sub-box of is a product with each . A double cover is a finite multiset of proper sub-bo…