By a nearlattice is meant a join-semilattice having the property that every principal filter is a lattice with respect to the semilattice order. We introduce the concept of (relat...
We introduce a notion of Dyck paths with coloured ascents. For several ways of colouring, when the set of colours is itself some class of lattice paths, we establish bijections be...
We give an example of supersonic solutions to a one-dimensional steady state Euler-Poisson system arising in the modeling of plasmas and semiconductors. The existence of the supers...
Blurred segments were introduced by Debled-Rennesson et al. [Segmentation of discrete curves into fuzzy segments. In: 9th IWCIA, Electronic notes in discrete mathematics, vol. 12;...
The solitaire army is a one-person peg jumping game where a player attempts to advance an "army" of pegs as far as possible into empty territory. The game was introduced...
George I. Bell, Daniel S. Hirschberg, Pablo Guerre...