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Divisible design graphs
Haemers, Willem H.; Kharaghani, Hadi; Meulenberg, Maaike A. - 2010
Persistent link: https://www.econbiz.de/10003965549
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Seidel switching and graph energy
Haemers, Willem H. - 2012
The energy of a graph T is the sum of the absolute values of the eigenvalues of the adjacency matrix of T. Seidel switching is an operation on the edge set of T. In some special cases Seidel switching does not change the spectrum, and therefore the energy. Here we investigate when Seidel...
Persistent link: https://www.econbiz.de/10009516701
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More about divisible design graphs
Crnković, Dean; Haemers, Willem H. - 2011
Persistent link: https://www.econbiz.de/10009389583
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A lower bound for the Laplacian eigenvalues of a graph-proof of a conjecture by Guo
Brouwer, A.E. (contributor); Haemers, Willem H. (contributor) - 2008
Persistent link: https://www.econbiz.de/10003736627
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Hamiltonian strongly regular graphs
Brouwer, A.E. (contributor); Haemers, Willem H. (contributor) - 2008
Persistent link: https://www.econbiz.de/10003736633
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Developments on spectral characterizations of graphs
Dam, Edwin Robert van (contributor);  … - 2007
Persistent link: https://www.econbiz.de/10003656641
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Strongly regular graphs with maximal energy
Haemers, Willem H. (contributor) - 2007
Persistent link: https://www.econbiz.de/10003656721
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Regularity and the generalized adjacency spectra of graphs
Chesnokov, Andrey A. (contributor);  … - 2005
Persistent link: https://www.econbiz.de/10003239157
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Characterizing distance-regularity of graphs by the spectrum
Dam, Edwin Robert van; Haemers, Willem H.; Koolen, J. H.; … - 2005
Persistent link: https://www.econbiz.de/10002623255
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Matrices and graphs
Haemers, Willem H. (contributor) - 2005
Persistent link: https://www.econbiz.de/10002744554