@book{bb5f8632c61a4ea38e032fce1b0995cf,

title = "Graphs with constant μ and μ",

abstract = "A graph G has constant u = u(G) if any two vertices that are not adjacent have u common neighbours. G has constant u and u if G has constant u = u(G), and its complement G has constant u = u(G). If such a graph is regular, then it is strongly regular, otherwise precisely two vertex degrees occur. We shall prove that a graph has constant u and u if and only if it has two distinct restricted Laplace eigenvalues. Bruck-Ryser type conditions are found. Several constructions are given and characterized. A list of feasible parameter sets for graphs with at most 40 vertices is generated.",

keywords = "Graphs, Eigenvalues, mathematics",

author = "{van Dam}, E.R. and W.H. Haemers",

note = "Pagination: 14",

year = "1995",

language = "English",

volume = "FEW 688",

series = "Research memorandum / Tilburg University, Faculty of Economics and Business Administration",

publisher = "Unknown Publisher",

}