3 papers
math.CO2026
VC-dimensions Between Partially Ordered Sets and Totally Ordered Sets
Boyan Duan, Minghui Ouyang, Zheng Wang
We say that two partial orders on are compatible if there exists a partial order that refines both of them. This compatibility relation induces a natural set system structure…
math.RA2024
Graded isomorphisms of Leavitt path algebras and Leavitt inverse semigroups
Huanhuan Li, Zongchao Li, Zhengpan Wang
Leavitt inverse semigroups of directed finite graphs are related to Leavitt graph algebras of (directed) graphs. Leavitt path algebras of graphs have the natural -gradin…
math.GR2024
Some properties of congruence lattices of path semigroups
Yongle Luo, Zhengpan Wang, Jiaqun Wei
Each quiver corresponds to a path semigroup, and such a path semigroup also corresponds to an associative K-algebra over an algebraically closed field K. Let Q be a quiver and S_Q,…