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Abstract

When can one see from the spectrum of a graph whether it is distance-regular or not? We give some new results for when this is the case. As a consequence we find (among others) that the following distance-regular graphs are uniquely determined by their spectrum: The collinearity graphs of the generalized octagons of order (2, 1), (3, 1) and (4, 1), the Biggs-Smith graph, the M 22 graph, and the coset graphs of the doubly truncated binary Golay code and the extended ternary Golay code.

European Tort Law 2006

“…Nicolas De Saedeleer pointed out how the law of environmental impairment has developed from a "curative" model in the nineteenth century, through a predominantly "preventive" model in the late twentieth century, into a new model for the twenty-first century which is based on anticipation 31 .…”

“…The paradox is that by assuming that the prophecy is correct, and that the city will be destroyed, the city is saved. 31 N. de Saedeleer, Les principes du pollueur, de prévention et de précaution. Essai sur la genèse et la protée juridique de quelques principes du droit de l'environnement (1990) 225 ff.…”

“…There used to be restrictions, mainly designed to rule out relationships held to be "immoral" or "illegitimate", like the old French doctrine of lien de droit. 31 However, over time, with a general liberalisation of morals on the one hand and growing concern for doctrinal consistency on the other, the restrictions disappeared step by step.…”

“…The amount is index-linked. 31 The Fund is financed by the master builders according to guidelines contained in a Royal Decree. 32 25 27 Art.…”

“…285/2002 Coll., Transplantation Act. 31 Assisted reproduction represents a preventive intervention into the reproductive ability of an individual, which is acknowledged both by medicine and law.…”