中国科学院数学与系统科学研究院期刊网
GRAPH SPARSIFICATION BY UNIVERSAL GREEDY ALGORITHMS
Ming-Jun Lai, Jiaxin Xie, Zhiqiang Xu
Journal of Computational Mathematics . 2023, (4): 741 -770 .  DOI: 10.4208/jcm.2201-m2021-0130