Baldur Sigurðsson



I'm doing a PhD at CEU under the supervision of András Némethi. I'm working on normal surface singularities.


I finished a BS degree at The University of Iceland in 2008 and an MS degree at Eötvös Loránd Tudományegyetem (ELTE) in 2010.

Written content


arXiv The geometric genus of hypersurface singularities. Joint with András Némethi.


lattice A program for calculating invariants related to lattice cohomology. manual

Oka A collection of functions related to numerical invariants of surface singularities written in PARI/GP. Includes an implementation of Oka's algorithm. Be warned that the function that calculates the Turaev torsion is flaky. I'll have to redo that whole thing, but until then, don't take it as absolute truth. In particular, the Seiberg-Witten invariant may be incorrect.