22 citations · 23 across the 5 of their papers we have counts for
5 papers
Surfaces with triple points
Stephan Endraß, Ulf Persson, Jan Stevens
In this paper we compute upper bounds for the number of ordinary triple points on a hypersurface in and give a complete classification for degree six (degree four or less is…
Standard bases with respect to the Newton filtration
Stephan Endrass
The aim of this article is to introduce standard bases of ideals in polynomial rings with respect to a class of orderings which are not necessarily semigroup orderings. Our approac…
On the divisor class group of double solids
Stephan Endrass
For a double solid branched over a surface with only ordinary nodes as singularities, we give a set of generators of the divisor class group $Pic(\t…
Minimal even sets of nodes
Stephan Endrass
We extend some results on even sets of nodes which have been proved for surfaces up to degree 6 to surfaces up to degree 10. In particular, we give a formula for the minimal cardin…
A Projective Surface of Degree Eight with 168 Nodes
Stephan Endrass
The estimate for the maximal number of ordinary double points of a projective surface of degree eight is improved to by constructing a projective surface of d…