
Algorithmic aspects of quasikernels
In a digraph, a quasikernel is a subset of vertices that is independent...
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Finding a Small Number of Colourful Components
A partition (V_1,...,V_k) of the vertex set of a graph G with a (not nec...
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Algorithmic and algebraic aspects of unshuffling permutations
A permutation is said to be a square if it can be obtained by shuffling ...
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The Clever Shopper Problem
We investigate a variant of the socalled "Internet Shopping Problem" in...
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Stéphane Vialette
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