Attila Maróti

most citedNormal coverings of linear groups

1 citations · 1 across the 4 of their papers we have counts for

collaborators

4 papers

math.GR2012

Covering certain Wreath Products with Proper Subgroups

Martino Garonzi, Attila Maroti

For a non-cyclic finite group $X$ let $σ (X)$ be the least number of proper subgroups of $X$ whose union is $X$ . Precise formulas or estimates are given for $σ (S ≀ C_{m})$ for cer…

math.GR2012★ 1 cited

Normal coverings of linear groups

John R. Britnell, Attila Maroti

For a non-cyclic finite group $G$ , let $γ (G)$ denote the smallest number of conjugacy classes of proper subgroups of $G$ needed to cover $G$ . Bubboloni, Praeger and Spiga, motivate…

math.RA2010

Rings as the unions of proper subrings

Andrea Lucchini, Attila Maroti

We describe all possible ways how a ring can be expressed as the union of three of its proper subrings. This is an analogue for rings of a 1926 theorem of Scorza about groups. We t…

math.GR2010

Average dimension of fixed point spaces with applications

Robert M. Guralnick, Attila Maroti

Let $G$ be a finite group, $F$ a field, and $V$ a finite dimensional $F G$ -module such that $G$ has no trivial composition factor on $V$ . Then the arithmetic average dimension of th…