12 citations · 63 across the 36 of their papers we have counts for
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On the algebraic fundamental group of surfaces with K^2\leq 3χ
Margarida Mendes Lopes, Rita Pardini
Let S be a minimal complex surface of general type with . We prove the following statements concerning the algebraic fundamental group: I) Assume that K^2_S\leq 3χ(S). Then…
Involutions on numerical Campedelli surfaces
Alberto Calabri, Margarida Mendes Lopes, Rita Pardini
Numerical Campedelli surfaces are minimal surfaces of general type with p_g=0 (and so q=0) and K^2=2. Although they have been studied by several authors, their complete classificat…
The degree of the bicanonical map of a surface with
Margarida Mendes Lopes, Rita Pardini
In this note it is shown that, given a smooth minimal complex surface of general type S with p_g(S)=0, K^2_S=3, for which the bicanonical map is a morphism, then the degree of the…
Numerical Godeaux surfaces with an involution
Alberto Calabri, Ciro Ciliberto, Margarida Mendes Lopes
Minimal algebraic surfaces of general type with the smallest possible invariants have geometric genus zero and K^2=1 and are usually called "numerical Godeaux surfaces". Although t…