Citation Rowlinson P & Jackson P (2002) Star complements and switching in graphs. Linear Algebra and Its Applications, 356 (1-3), pp. 135-143. https://doi.org/10.1016/S0024-3795%2802%2900375-0
Abstract Star complements are used to construct switching-equivalent graphs which share an eigenvalue of the same multiplicity. A variant of the construction is used to obtain a characterization of the McLaughlin graph.
Keywords graph; eigenvalue; eigenspace; star complement; switching
Journal Linear Algebra and Its Applications: Volume 356, Issue 1-3