24 October 2013: my paper with Eggermont on the existence of poly-time membership tests for a wide class of phylogenetic models has just been accepted for J. Eur. Math. Soc.
1 May 2013: my paper with Kuhnt and Zwiernik on groups acting on Gaussian graphical models has just been accepted for Annals of Statistics.
Spring 2013: Robert
Krone from GeorgiaTech is visiting for three months. Together with
Eggermont we aim to prove finiteness-up-to-symmetry results for
certain infinite-dimensional toric varieties.
15 October 2012: the website of the CIME/CIRM course Combinatorial
Algebraic Geometry, taking place from 10-15 June 2013 in Levico Terme,
is up. Check it out!
1 September 2012: Emil Horobeţ from Babes-Bolyai university joins the group on the project Tensors of Bounded Rank.
23 January 2012: Tensors of Bounded Rank, an NWO free competition Ph.D. project proposal together with Monique Laurent and Siep Weiland has been awarded funding!
23 January 2012: Piotr Zwiernik is starting a Post-doc in the Vidi project.
1 September 2011: Rob Eggermont started his Ph.D. in the Vidi project.
2 March 2011: a manuscript with Johan P. de Jong on his Bachelor's
project has been accepted for publication in the EMS Newsletter. See this page.
6 October 2010: A Vidi grant!
See this page or this page or this page.
Programs for Lie algebras and algebraic groups
- By Willem de Graaf.
Variation on UniversalEnvelopingAlgebra in
takes a basis of the Lie algebra as a parameter.
- Weyl Algebras in GAP, another minor variation on de Graaf's
- Explicit realization of Lie algebras by vector fields, in GAP;
requires UEA and WeylAlg. See this
paper for an explanation of the algorithm and its usage.
- Finds all reductive maximal subalgebras of a classical complex Lie
algebra, and the corresponding restriction matrices; written in LiE.
- SeDiMO v. 3
- Computes, using a randomised algorithm, the secant
dimensions of minimal orbits. Written in GAP together with Karin Baur and Willem de Graaf.
Unzip and untar the archive using
tar xzvf sedimov3.tar.gz
create a directory sedimov3; read the files README and sedimo.d for
information on the usage.