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Residential Awareness and Environment Improvement: Evidence from the River Chief System in China
China 主要內(nèi)容：River pollution has been a problem in many developing countries. As the largest developing ...
newsservice - 09/29/2021 - 19:40
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
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