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math.CO2019★ 1 cited
The Newton polytope of the discriminant of a quaternary cubic form
Lars Kastner, Robert Loewe
We determine the extremal monomials of the discriminant of a quaternary cubic form. These are in bijection with -equivalence classes of regular triangulations of the…
math.CO2019★ 1 cited
Random growth on a Ramanujan graph
Janko Boehm, Michael Joswig, Lars Kastner +1
The behavior of a certain random growth process is analyzed on arbitrary regular and non-regular graphs. Our argument is based on the Expander Mixing Lemma, which entails that the…