I am a PhD student studying algebraic geometry at the University of Oslo. My advisors are Ragni Piene and John Christian Ottem.
Office: Niels Henrik Abels hus, room 1037
Email: berntin at math.uio.no
I am part of the algebraic geometry student seminar at the University of Oslo.
Local Euler obstructions of toric varieties To appear in Journal of Pure and Applied Algebra.ArXiv preprints:
Polar degrees and closest points in codimension two with Martin Helmer.
Secants, bitangents, and their congruences with Kathlen Kohn and Paolo Tripoli.
The Hilbert scheme of 11 points in A^3 is irreducible with Theodosios Douvropoulos, Joachim Jelisiejew and Zach Teitler.
A toric proof of Bezout's theorem for weighted projective spaces From my master's thesis.
Macaulay2 code I wrote for computing parliaments of polytopes of toric vector bundles:
A package Parliament.m2: Parliament.m2
Examples from Di Rocco-Jabbusch-Smith's article illustrating its use: examplesParliament.m2
Macaulay2 code I wrote for computing local Euler obstructions and degrees of dual varieties for weighted projective surfaces and threefolds.
A package EulerObstructionWPS.m2: EulerObstructionWPS.m2
The examples appearing in my article "Local Euler obstructions of toric varieties": examplesEulerObWPS.m2