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1. On the improved Brouwer's Laplacian spectrum conjecture

   sum of the first k largest Laplacian eigenvalues of G. It was conjectured by Brouwer that ...

   newsservice - 11/25/2021 - 16:16

2. Residential Awareness and Environment Improvement: Evidence from the River Chief System in China

   China 主要內容：River pollution has been a problem in many developing countries. As the largest developing ...

   newsservice - 09/29/2021 - 19:40