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ENDM
2007
13 years 6 months ago
2007
We survey recent results on a few distance labelling problems for hypercubes and Hamming graphs.
ENDM
2010
13 years 6 months ago
2010
We call "on/off" constraint an algebraic constraint that is activated if and only if
ENDM
2006
13 years 6 months ago
2006
In this paper, we study the representation of W(2) in PG(2, 4) related to a hyperoval. We provide a group-theoretic characterization and some geometric ones.
ENDM
2006
13 years 6 months ago
2006
A graph is hypohamiltonian if it is not hamiltonian but every vertex-deleted subgraph is. In this paper we study hypohamiltonian snarks
ENDM
2007
13 years 6 months ago
2007
We show that for every n there are two simple curves on the torus intersecting at least n times without the two curves folding or spiralling with respect to each other.