3 papers
math.CO2024
The Minimum Weighting Ratio Problem and Its Application in Chordal Graphs
Hui Lei, Mei Lu, Yongtang Shi +2
Constructing the maximum spanning tree of an edge-weighted connected graph is one of the important research topics in computer science and optimization, and the related res…
physics.ao-ph2023
Mapping tidal flat topography using time-series Sentinel-2 images and ICESat-2 data: A case study in Cixi City
Xiucheng Zheng, Bin Zhou, Hui Lei +2
Tidal flat topography provides crucial insights for understanding tidal flats and their dynamic evolution. However, the wide-ranging and rapidly changing nature of tidal flats, whi…
math.CO2021
On critical graphs for the chromatic edge-stability number
Hui Lei, Xiaopan Lian, Xianhao Meng +2
The {\em chromatic edge-stability number} of a graph is the minimum number of edges whose removal results in a spanning subgraph with the chromatic number smaller tha…