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math.CO2012
Edge-distance-regular graphs are distance-regular
M. Cámara, C. Dalfó, C. Delorme +2
A graph is edge-distance-regular when it is distance-regular around each of its edges and it has the same intersection numbers for any edge taken as a root. In this paper we give s…
math.NT2012
Quadratic form representations via generalized continuants
Charles Delorme, Guillermo Pineda-Villavicencio
H. J. S. Smith proved Fermat's two-square theorem using the notion of palindromic continuants. In this paper we extend Smith's approach to proper binary quadratic form representati…