3 citations
5 papers
Concurrent normals of immersed manifolds
Gaiane Panina, Dirk Siersma
It is conjectured since long that for any convex body there exists a point in the interior of which belongs to at least normals from different poi…
Extremal Area of Polygons sliding along Curves
Dirk Siersma
In this paper we study the area function of polygons, where the vertices are sliding along curves. We give geometric criteria for the critical points and determine also the Hesse m…
A pasting theorem for iterated Segal spaces
Jaco Ruit
We introduce a novel notion of pasting shapes for iterated Segal spaces which classify particular arrangements of composing cells in d-uple Segal spaces. Using this formalism, we t…
An example of a Brauer-Manin obstruction to weak approximation at a prime with good reduction
Margherita Pagano
Following Bright and Newton, we construct an explicit K surface over the rational numbers having good reduction at 2, and for which 2 is the only prime at which weak approximati…
Evaluating the wild Brauer group
Martin Bright, Rachel Newton
Classifying elements of the Brauer group of a variety X over a p-adic field according to the p-adic accuracy needed to evaluate them gives a filtration on Br X. We relate this filt…