3 papers
math.CO2026
Submodular flows and extreme flows on measurable spaces
Jing Yu, Junchi Zhang, Mingyang Zhou
The theory of submodular flows, introduced by Edmonds and Giles, is a cornerstone of combinatorial optimization, unifying network flows, matroid intersections and directed cut cove…
math.CO2025
Limit for Quotient Convergent Graph Sequence
Yaobin Chen, Zhicheng Liu, Yihang Xiao +1
Building on the limit theory for set functions, we prove that the limit of convergent sequence of bounded-degree graphs' cycle matroids can be represented as the cycle matroid of a…
math.CO2025
Unbounded degree spanning hypertrees in Dirac hypergraphs
Yaobin Chen, Seonghyuk Im, Junchi Zhang
In 2001, Komlós, Sárközy, and Szemerédi proved that every sufficiently large -vertex graph with minimum degree at least contains all spanning trees wi…