F. Grunewald

activity

20002010

most citedThe classification of surfaces with p_g = q = 0 isogenous to a product of curves

20 citations · 60 across the 14 of their papers we have counts for

collaborators

Showing 2009Show all

3 papers · 1 filter

math.NT2009

Lattice points for products of upper half planes

Roelof Bruggeman, Fritz Grunewald, Roberto Miatello

Let $Γ$ be an irreducible lattice in $\PSL_2(\RR)^d$ ($d\in\NN$) and $z$ a point in the $d$ -fold direct product of the upper half plane. We study the discrete set of componentwise…

math.GR2009

From Thompson to Baer-Suzuki: a sharp characterization of the solvable radical

Nikolai Gordeev, Fritz Grunewald, Boris Kunyavskii +1

We prove that an element $g$ of prime order $> 3$ belongs to the solvable radical $R (G)$ of a finite (or, more generally, a linear) group if and only if for every $x \in G$ the subgr…

math.AT2009

Another point in homological algebra: Duality for discontinuous group actions

F. Grunewald, W. Singhof

We consider discontinuous operations of a group $G$ on a contractible $n$ -dimensional manifold $X$ . Let $E$ be a finite dimensional representation of $G$ over a field $k$ of charac…