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On the sum of the two largest Laplacian eigenvalues of trees

Crossref DOI link: https://doi.org/10.1186/1029-242X-2014-242

Published Online: 2014-06-23

Published Print: 2014-12

Update policy: https://doi.org/10.1007/springer_crossmark_policy

Authors

Guan, Mei

Zhai, Mingqing

Wu, Yongfeng
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Article History

Received: 23 December 2013

Accepted: 5 June 2014

First Online: 23 June 2014