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.
This course is taught in Spring 2007, by Aart Blokhuis , Hans Cuypers and (a bit by) myself. See also
the course page at Mastermath.
Projective and Polar Spaces by Peter J. Cameron.
QMW Maths Notes 13.
Summary of the topics treated thus far in the course
Introduction to fields and vector spaces and finite projective planes.
The fundamental theorem of projective geometry.
The Desargues configuration.
Counting subspaces and determining group orders.
Coordinatisation of projective spaces of order 2.
Affine spaces. Transitivity of parallelism. (Sections 3.5 and 3.6 of the
course material). Spreads and translation planes (Section 4.1). Segre's
theorem (Section 4.3).
The projective line and cross-ratio (Section 4.5); application to
3-designs. Baer subplanes, and Aiden Bruen's theorem. Blokhuis's theorem
Dualities and polarities of projective spaces and
sesquilinear forms (Section 6.1 and 6.2).
Polarities and related forms and their geometry (remaider chapter 6).
Polar spaces, an axiomatic approach (chapter 7)
To get ECTS points, we suggest that you write an essay on one of
DEADLINE for submission of essays: 26 August 2007, by e-mail to one of us.
Projective Geometry by Albrecht Beutelspacher and Ute Rosenbaum.
Cambridge University Press, 1998.
A slow-paced elementary treatment for readers with little mathematical
Designs, Graphs, Codes, and their Links by Peter J. Cameron and
J.H. van Lint. London Math. Soc. Student Texts.
For people interested in design theory, partial geometries, and their
relation to finite projective planes.
Miniquaternion Geometry by T.G. Room and P.B. Kirkpatrick.
Cambridge University Press, 1971.
An introduction to the study of projective planes with emphasis on the four
different planes of order 9, their coordinatisation, and the study of
substructures such as ovals, Hermitian sets and subplanes.
Finite Geometries by Peter Dembowski. Springer Verlag, 1968
The classic treatment of the combinatorics of finite projective and affine
planes and their classification in terms of groups acting on them.
Combinatorics---topics, techniques, algorithms by Peter J. Cameron.
Cambridge University Press.
Contains a very readable introductory chapter on finite geometry.
Projective geometries over finite fields by J.W.P. Hirschfeld.
Oxford University Press.
A very useful collection of results on combinatorial structures in
projective planes such as arcs, ovals, cubic curves, blocking sets;
and a special chapter on the planes of orders 2,3,...,13.
Projective Planes by Daniel R. Hughes and Fred C. Piper.
Elaborate study of the algebraic structures that are used to coordinatise
the different kinds of finite projective planes.
Eindige Meetkunde by J.J.
Lecture notes in Dutch. Contains all the basics and an elaborate treatment
of quadratic and hermitian forms, as well as an introduction to polar spaces.