Yen-Jen Cheng

activity

20172025

most citedThe Boolean Rainbow Ramsey Number of Antichains, Boolean Posets, and Chains

3 citations · 4 across the 10 of their papers we have counts for

collaborators

Showing 2021Show all

3 papers · 1 filter

math.CO2021

Sharp bounds of the $A_{α}$ -spectral radii of mixed trees

Yen-Jen Cheng, Louis Kao, Chih-Wen Weng

A mixed tree is a tree in which both directed arcs and undirected edges may exist. Let $T$ be a mixed tree with $n$ vertices and $m$ arcs, where an undirected edge is counted twice…

math.CO2021

Counterexamples of the Bhattacharya-Friedland-Peled conjecture

Yen-Jen Cheng, Chia-An Liu, Chih-wen Weng

The Brauldi-Hoffman conjecture, proved by Rowlinson in 1988, characterized the graph with maximal spectral radius among all simple graphs with prescribed number of edges. In 2008,…

math.CO2021★ 1 cited

Ramsey Properties for $V$ -shaped Posets in the Boolean Lattices

Hong-Bin Chen, Wei-Han Chen, Yen-Jen Cheng +2

Given posets $P_{1}, P_{2}, \dots, P_{k}$ , let the {\em Boolean Ramsey number} $R (P_{1}, P_{2}, \dots, P_{k})$ be the minimum number $n$ such…

Sharp bounds of the Aα​-spectral radii of mixed trees

Counterexamples of the Bhattacharya-Friedland-Peled conjecture

Ramsey Properties for V-shaped Posets in the Boolean Lattices

Sharp bounds of the $A_{α}$ -spectral radii of mixed trees

Ramsey Properties for $V$ -shaped Posets in the Boolean Lattices