Langford sequences and a product of digraphs
Skolem and Langford sequences and their many generalizations have applications in numerous areas. The -product is a generalization of the direct product of digraphs. In this paper we use the -product and super edge-magic digraphs to construct an exponential number of Langford sequences with certain order and defect. We also apply this procedure to extended Skolem sequences.
Journal or Serie
European Journal of Combinatorics, 2016, vol. 53, p. 86-95