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math.CO2018
A new lower bound for the size of an affine blocking set
Maarten De Boeck, Geertrui Van de Voorde
A blocking set in an affine plane is a set of points such that every line contains at least one point of . The best known lower bound for blocking sets in arbitrary (non-des…
math.CO2018
The minimum size of a linear set
Jan De Beule, Geertrui Van de Voorde
In this paper, we first determine the minimum possible size of an Fq-linear set of rank k in PG(1, q^n). We obtain this result by relating it to the number of directions determined…