Seminars on Incidence Geometry and related activities

Schedule

Sunday 2 July 2017
Brussels (VUB, campus Etterbeek, room 6G324)
14:00 - 15:00
- 14:00 - 15:00 Samantha Dorfling
  Generalized edge-colourings of graphs with forbidden subgraphs and additive hereditary graph properties
Sunday 29 November 2015
Ghent, meeting room S22
16:00 - 17:00
- 16:00 - 17:00 N.S.N. Sastry
  Ovoids in, and binary codes associated with the generalized quadrangle W(2^t)
Tuesday 3 March 2015
Ghent, S22, lecture room A
16:00 - 17:00
- 16:00 - 17:00 Klaus Metsch
  Erdős-Ko-Rado sets for finite classical polar spaces
Monday 17 November 2014
Ghent, S22, meeting room
14:30 - 15:30
- 14:30 - 15:30 Ludmila Tsiovkina
  On antipodal distance-regular covers of complete graphs related to finite 2-transitive simple groups
- 15:30 - 16:40 James Parkinson
  A Multiplicative Ergodic Theorem for p-adic Lie groups
Tuesday 9 September 2014
Ghent
14:00 - 17:00
- 14:00 - 14:50 Mark Ioppolo
  Neighbour-transitive codes in Johnson graphs
- 15:00 - 15:50 Nicola Durante
  Poinsets of PG(2,q^n) generated by collineations between pencils of lines
- 16:00 - 16:50 Francesco Mazzocca
  Generalized Hyperfocused Arcs in Finite Desarguesian Planes
Wednesday 7 May 2014
Gent, S22
15:00 - 16:00
- 16:00 - 17:00 Brett Stevens
  Optimizing an imperfect tournament
Sunday 8 December 2013
Gent, Lecture room A
14:30 - 15:30
- 14:30 - 15:30 Hao Shen
  Weight distribution of Preparata codes over Z_4 and the construction of 3-designs
Thursday 5 December 2013
Gent, Lecture room A
14:30 - 16:30
- 14:30 - 15:30 Anamari Nakic
  Tight sets in finite classical polar spaces
- 15:30 - 16:30 Morgan Rodgers
  Cameron-Liebler type sets of k-spaces
Wednesday 27 November 2013
Gent, Lecture room A
16:30 - 17:30
- 16:30 - 17:30 Jeroen Schillewaert
  Small maximal partial ovoids in Generalized Quadrangles
Wednesday 6 November 2013
Gent, lecture room A
15:30 - 16:30
- 15:30 - 16:30 Anamari Nakic
  On the designs with prescribed automorphism groups
Thursday 24 October 2013
Gent, S22, meeting room
14:30 - 15:30
- 14:30 - 15:30 Peter Abramenko
  A characterization of unipotent radicals of parabolic subgroups
Wednesday 2 October 2013
Ghent, S22
15:30 - 16:30
- 15:30 - 16:30 David Glynn
  Graphs in Finite Geometry
Wednesday 21 August 2013
Gent, S22, lecture room C
15:00 - 16:00
- 15:00 - 16:00 Jürgen Bierbrauer
  A bound on permutation codes
Wednesday 6 February 2013
Ghent
14:00 - 16:30
- 14:00 - 15:00 Sasha Ivanov
  The geometry of the sporadic simple groups, V
- 15:15 - 16:15 Sasha Ivanov
  The geometry of the sporadic simple groups, VI
Monday 4 February 2013
Ghent
14:00 - 16:30
- 14:00 - 15:00 Sasha Ivanov
  The geometry of the sporadic simple groups, III
- 15:15 - 16:15 Sasha Ivanov
  The geometry of the sporadic simple groups, IV
Sunday 3 February 2013
Ghent
10:00 - 12:30
- 10:00 - 11:00 Sasha Ivanov
  The geometry of the sporadic simple groups I
- 11:15 - 12:15 Sasha Ivanov
  The geometry of the sporadic simple groups, II
Wednesday 7 November 2012
Gent, LT Emmy Noether (S25)
15:00 - 16:30
- 15:00 - 16:00 Bruce Cooperstein
  Witt-type Theorems for exceptional Lie Geometries
- 16:00 - 16:30 Bruce Cooperstein
  The future of mathematical textbooks
Monday 15 October 2012
Gent, meeting room (S22)
11:00 - 12:00
- 11:00 - 12:00 David Glynn
  New Methods in Projective Geometry, Algebra and Combinatorics
Wednesday 3 October 2012
Ghent, Lecture room B
11:30 - 12:30
- 11:30 - 12:30 Jack Koolen
  Some recent progress in distance-regular graphs
Wednesday 28 March 2012
Ghent, LT Emmy Noether (S25)
14:00 - 15:00
- 14:00 - 15:00 Vedran Krcadinac
  On unitals with collinear pedal sets
Wednesday 14 March 2012
Gent, lecture room A
14:00 - 15:00
- 14:00 - 15:00 Vedran Krcadinac
  Large symmetric configurations in translation planes
Wednesday 23 November 2011
Ghent, meeting room (S22)
15:00 - 16:00
- 15:00 - 16:00 Jürgen Bierbrauer
  Constructions of semifields
Wednesday 26 October 2011
Ghent, Lecture room "Emmy Noether" (S25)
14:00 - 16:00
- 14:00 - 14:50 Ulrich Dempwolff
  Translation planes from Dembowski Ostrom polynomials
- 15:00 - 15:50 Jürgen Bierbrauer
  additive cyclic codes
Wednesday 12 October 2011
Ghent, lecture room A
15:00 - 16:00
- 15:00 - 16:00 Morgan Rodgers
  Cameron-Liebler line classes from cyclic groups
Wednesday 28 September 2011
Ghent, lecture room B
15:00 - 16:00
- 15:00 - 16:00 Bernhard Mühlherr
  Multiple trees and generalizations
Wednesday 6 April 2011
UGent, S25, Emmy Noether
13:00 - 18:30
- 13:00 - 13:50 Chris Godsil (Waterloo)
  Erdös-Ko-Rado Theorems
- 14:00 - 14:50 Andries Brouwer (Eindhoven)
  The unique coclique extension property for apartments of buildings
- 15:00 - 15:50 John Bamberg (Perth)
  Hemisystems of small generalised quadrangles.
- 17:00 - 18:30 Frédéric Vanhove
  Incidence Geometry from an algebraic graph theory point of view
  This is the public PhD-defence of Frédéric. After the defence there will be a drink
Thursday 24 February 2011
UGent
- 15:00 Giuseppe Marino
  Towards the classification of rank two semifields 6-dimensional over their center
- 16:00 Jason Williford
  Graphs and Geometries Derived from Kac-Moody Algebras
Thursday 27 January 2011
S22 - lecture room B
15:00 - 16:50
- 15:00 - 16:50 Jan De Beule
  The polynomial method in Galois geometry
Tuesday 18 January 2011
Auditorium B, S22
11:00 - 12:00
- 11:00 - 12:00 Max Horn
  Connectivity of flip-flop geometries
Thursday 21 October 2010
UGent, S22, Room B
- 14:30 - 15:20 Hendrik Van Maldeghem
  Metric Properties of Automorphisms of Buildings
- 15:30 - 16:20 Hendrik Van Maldeghem
  Metric Properties of Automorphisms of Buildings, continued
Thursday 14 October 2010
S22 - Lecture Room B
- 14:30 - 15:15 Maarten De Boeck
  Small weight codewords in the dual code of points and hyperplanes in PG(n, q).
- 15:30 - 16:15 Peter Vandendriessche
  Codes arising from linear representations.
Thursday 23 September 2010
UGent, S25, Emmy Noether
- 14:00 - 14:45 Giuseppe Marino (Seconda Universita degli Studi di Napoli, Caserta, Italia):
  Ovoidal blocking sets and maximal partial ovoids of Hermitian varieties.
- 15:00 - 15:45 Franco Mazzocca (Seconda Universita degli Studi di Napoli, Caserta, Italia)
  The nite eld Kakeya problem: Dvir's result and related topics.
- 16:00 - 16:45 Sephan Dodunekov (Bulgarian Academy of Sciences, Soa, Bul- garia):
  Generalized residue codes.
Thursday 4 March 2010
UGent, S25, Emmy Noether LT
- 15:00 Bart De Bruyn
  On representations of the symplectic groups on exterior powers of vector spaces
- 16:00 Bart De Bruyn
  On representations of the symplectic groups on exterior powers of vector spaces, continued
Thursday 25 February 2010
UGent, S25, Emmy Noether LT
- 15:00 Ilaria Cardinali (University of Siena)
  On Weyl modules for the symplectic group
Thursday 18 February 2010
UGent, S25, Emmy Noether LT
- 15:00 Simon Huggenberger (UGent)
  Grassmannians of arbitrary rank
- 16:00 Nicola Durante (Napels University)
  Characterization Theorems for unitals in PG(2,q^2)
Monday 1 February 2010
UGent, S22, Lecture Room A
- 15:00 Giuseppe Marino (Seconda Universitá degli Studi di Napoli)
  Algebraic curves and semifields
Thursday 21 January 2010
UGent, S22, Lecture Room C
- 15:00 Stanley Payne (University of Colorado Denver)
  An Introduction to q-Clan Geometries in Characteristic 2
  (A list of errata in the monograph on the subject by Cardinali and Payne can be found here.)
Thursday 17 December 2009
UGent, S25, Emmy Noether LT
- 15:00 Geertrui Van de Voorde (UGent)
  Linear (blocking) sets
- 16:00 Jan De Beule (UGent)
  On the work of András Gács
Thursday 10 December 2009
UGent, S25, Emmy Noether LT
- 15:00 Koen Struyve (UGent)
  Existence of certain affine buildings
- 16:00 Leo Storme (UGent)
  Spectrum results in finite geometry
Thursday 26 November 2009
UGent, S25, Emmy Noether LT
- 15:00 Nóra Viola Harrach (Eötvös Loránd University, Budapest)
  Small point sets of PG(n,q³) intersecting each k-subspace in 1 mod q points
- 16:00 Aart Blokhuis (Technische Universiteit Eindhoven)
  On the structure of 3-nets embedded in a projective plane
Thursday 19 November 2009
UGent, S25, Emmy Noether LT
- 16:00 Kris Coolsaet (UGent)
  Ovoids of SL(2,q)
Thursday 12 November 2009
UGent, S25, Emmy Noether LT
- 15:00 Edwin van Dam (Tilburg University)
  Cometric Q-antipodal association schemes - uniformity and linked systems
- 16:00 Willem Haemers (Tilburg University)
  Searching for Godsil-McKay switching sets
Thursday 5 November 2009
UGent, S25, Emmy Noether LT
- 16:00 Frank De Clerck
  Perp-systems, an overview
Thursday 22 October 2009
UGent, S25, Emmy Noether LT
- 16:00 Yves Edel
  Geometrical and combinatorial aspects of APN functions
Thursday 15 October 2009
UGent, S25, Emmy Noether LT
- 15:00 Frédéric Vanhove
  Eigenvalue techniques applied to polar spaces
Tuesday 6 October 2009
UGent, S25, Emmy Noether LT
- 16:00 Chris Godsil
  Quantum Geometry: MUB's and SIC-POVM's
  This talk is meant for a general mathematical audience and is co-organised by Prime. Students should not hesitate to attend the colloquium!
Thursday 11 June 2009
UGent, S22, Lecture Room A
- 14:00 - 14:45 Stefan van Zwam
  Rota's Conjecture and partial fields
- 15:00 - 15:45 Bart De Bruyn
  The valuations of the near polygon $G_n$
Thursday 14 May 2009
UGent, S22, Lecture Room B
- 14:00 - 14:45 Anja Hallez
  Sets of generators in finite classical polar spaces blocking all generators
- 15:00 - 15:45 Jan De Beule
  Existence and a characterisation of maximal partial ovoids of Q(4,q)
Thursday 7 May 2009
UGent, S22, Lecture Room B
- 15:00 - 15:45 Tamas Szonyi
  A q-analogue of the theorem of Hilton-Milner
- 16:00 - 16:45 Tamas Szonyi
  On the stability of Baer subplanes
Thursday 5 March 2009
Gent, S22, Lecture Room B
- 15:00 - 15:50 Michel Lavrauw
  The linearity conjecture for blocking sets in PG(n,q^3), part I: statement of the problem and some lemmas.
- 16:00 - 16:50 Geertrui Van de Voorde
  The linearity conjecture for blocking sets in PG(n,q^3), part II: a proof for q prime.
Thursday 12 February 2009
Gent, S22, Lecture Room B
- 14:00 - 14:45 Nicola Durante
  Intersection of a Hermitian curve with a conic.
- 15:00 - 15:45 Hao Shen
  Applications of PBD closed sets in the constructions of designs and codes.
Thursday 11 December 2008
Gent, S22, Lecture Room A
- John Bamberg
  One-dimensional affine flag-transitive linear spaces
  Abstract: In 1994, Buekenhout, Delandtsheer, Doyen, Kleidman, Liebeck and Saxl announced the classification of finite flag-transitive linear spaces, with a catch; the exception being those which have an automorphism group which can be embedded into AGammaL(1,q) (for some q). I will give an overview of the finite flag-transitive linear spaces and a construction of new ones. This is joint work with Michael Pauley (The University of Western Australia).
Thursday 4 December 2008
Gent, S22, Lecture Room A
- Stefaan De Winter
  An extremal characterization of projective planes
Thursday 13 November 2008
S22, Lecture Room A
14:00 - 16:00
- J. A. Thas
  Generalized Ovals in PG(3n-1,q), with q odd
Monday 9 June 2008
UGent, S22, Lecture Room B
- 10:30 - 11:20 Mariusz Kwiatkowski
  Adjacency and opposite relations on polar Grassmannians
Thursday 5 June 2008
UGent, S22, Lecture Room A
- 13:30 - 14:20 Valentina Pepe
  On the slices of the Unitary spread of Q^+(7,q), q=2^{2h+1}
- 14:30 - 15:20 Felix Lazebnik
  Some algebraic and combinatorial questions related to finite geometries.
Thursday 22 May 2008
Ghent, S22, Lecture Room B
- 14:00 - 14:50 Geertrui Van de Voorde
  The code of points and k-spaces of PG(n,q)
- 15:00 - 15:50 Rocco Trombetti
  Translation dual of a semifield
Thursday 24 April 2008
UGent
- 14:00 - 14:45 Koen Struyve
  2-dimensional affine apartment systems
  Abstract
- 15:00 - 15:45 Jeroen Schillewaert
  Minimal codewords in Reed-Muller codes
  Abstract
Wednesday 16 January 2008
UGent, S22, Lecture Room B
- 14:00 Moon Ho Lee
  Jacket matrices
Wednesday 5 December 2007
UGent, Emmy Noether LT
- 16:00 - 17:00 Stefan Dodunekov
  On two optimization problems in coding theory
  Abstract: The main goal of the talk is to present some new results and to discuss some open problems about Grey-Rankin bound and quasi-perfect codes.
Thursday 22 November 2007
UGent, S22, Lecture Room A
- 16:30 - 17:30 Heide Sticker
  A full classification of the complete k-arcs of PG(2,23) and PG(2,25)
Thursday 11 October 2007
UGent, S22, Lecture room A
- 14:30 - 15:20 Willem Haemers
  Tripartite distance-regular graphs
- 15:30 - 16:20 Aart Blokhuis
  Solution of the Kakeya problem in the plane
Thursday 13 September 2007
UGent, S22, Lecture room A
- 15:30 - 16:30 Ilaria Cardinali
  On the nucleus of the Grassmann-embedding of symplectic dual polar spaces in characteristic 2
Wednesday 13 June 2007
Gent, Lecture room A (also known as 7)
10:30 - 12:30
- 10:30 - 11:20 B. K. Sahoo (National Institute of Technology, Rourkela, India)
  Non-abelian representations of point-line geometries
- 11:30 - 12:20 N. S. Narasimha Sastry (Indian Statistical Institute, Bangalore, India)
  Codes related to some permutation groups
Thursday 31 May 2007
UGent, S22, Lecture Room 7
- 14:00 - 14:45 Michael Giudici
  Edge-primitive graphs
- 15:00 - 15:45 James Hirschfeld
  Curves over finite fields
Thursday 10 May 2007
UGent, S22, Lecture Room 7
- 14:00 - 14:50 Geertrui Van de Voorde
  Small weight codewords in the (dual) LDPC codes arising from $T_2^*(K)$
- 15:00 - 15:50 Nikolai Manev
  Linear recursions generating permutation
Thursday 15 March 2007
UGent, S22, Lecture room 7
- 14:00 - 15:00 Jan De Beule
  On maximal partial ovoids and maximal partial spreads of finite classical polar spaces.
Thursday 1 March 2007
UGent, S22, Lecture room 7
- 14:00 - 14:50 Stefaan De Winter
  The full automorphism group of a class of geometries constructed from classical polar spaces.
Thursday 18 January 2007
UGent, S22, Lecture room 7
- 14:00 - 15:00 Jeroen Schillewaert
  A characterization of quadrics by intersection numbers
Thursday 21 December 2006
UGent, S22, Lecture room 7
- 14:00 - 14:50 An De Wispelaere
  Regular partitions of (weak) finite generalized polygons
Thursday 7 December 2006
UGent, S22, Lecture room 7
- 14:00 Tom De Medts
  Finite special Moufang sets
Thursday 9 November 2006
UGent, S22, Lecture room 7
14:00 - 15:00
- John Bamberg
  3/2-transitive groups
Thursday 26 October 2006
UGent, S22, Lecture room 7
14:00 - 15:00
- Michael Giudici
  Witt designs, Mathieu groups, involutions and a tower of graphs.
Wednesday 4 October 2006
Gent, Lecture room 7
15:00 - 16:00
- 15:00 - 15:50 Ivan Landjev
  On multiple deletion codes
Tuesday 19 September 2006
Gent, Lecture room 7
14:00 - 16:00
- 14:00 - 14:45 G. Pearce (University of Western Australia)
  Transitive graph decompositions, partial linear spaces and origami
- 15:00 - 15:45 E. E. Shult (Kansas State University)
  Local characterizations of geometries or ... beware of handy definitions
Monday 3 July 2006
Gent, S22, room 7
14:00 - 16:30
At 17:00h (Room Emmy Noether, S25) Kris Coolsaet (Ghent) will defend his PhD: "An Algebraic Approach to the Perfect Ree-Tits Octagons and Related Geometries" (in Dutch)
- 14:00 - 14:50 Peter Abramenko (Virginia)
  Characterizations of Apartments
- 14:50 - 15:40 Ralf Gramlich (Darmstadt)
  Applications of Flipflop Geometries
- 15:40 - 16:30 Bernhard Muehlherr (Brussels)
  On Tits' center-conjecture for spherical buildings
Thursday 11 May 2006
Ghent, Lecture room 14
11:00 - 12:00
- 11:00 - 12:00 Kevin Jennings (University College Dublin)
  Difference sets with classical parameters corresponding to 4-dimensional projective geometries
Thursday 4 May 2006
Gent, Lecture room 7
14:00 - 16:00
- Kris Coolsaet
  An algebraic approach to the perfect Ree-Tits octagons
Thursday 16 March 2006
Gent, Room 2 (Meeting room)
- 14:00 - 16:00 Nick Gill
  Line-transitive linear spaces
Thursday 19 January 2006
UGent seminar on incidence geometry
- 14:00 Jan De Beule
  On maximal partial spreads of H(5,q²)
Thursday 15 December 2005
Ghent (Lecture room Emmy Noether)
- 16:00 An De Wispelaere
  Ovoids and spreads of finite classical generalized hexagons and applications
  Public defence of PhD
Thursday 8 December 2005
Ghent (lecture room 7)
UGent-ULB-VUB-seminar on Incidence Geometry
Thursday 1 December 2005
UGent seminar on Incidence Geometry
- 15:00 - 15:50
  Demo and user instructions for the new preprint server.
Thursday 17 November 2005
UGent seminar on Incidence Geometry
- 14:30 - 15:20 Cheryl Praeger (University of Western Australia, Perth)
  Imprimitive group actions on designs
- 15:30 - 16:20 James Hirschfeld (University of Sussex)
  Maximal curves
- 16:30 - 17:20 Dieter Jungnickel (Universität Augsburg)
  Balanced generalized weighing matrices and related structures
Wednesday 16 November 2005
Brussels (ULB, Auditoire Forum E)
- 12:15 Cheryl Praeger
  Groups, probability, algorithms: computing with giants
Tuesday 8 November 2005
Brussels
UGent-ULB-VUB-seminar on Incidence Geometry
Thursday 27 October 2005
- 14:00 - 16:00 Stefaan De Winter
  The van Lint-Schrijver partial geometry
Tuesday 18 October 2005
Brussels, Academy
organised by National Comite of Mathematics
- 14:30 H. Van Maldeghem
  Buildings and Groups: a simple marriage of Lie type
Friday 14 October 2005
Gent, Lecture room 7
- Buildings, Groups and Algebras
Thursday 13 October 2005
Gent, Lecture room 7
- Special Seminar Incidence Geometry, a prelude to the colloquium in honour of J. Tits
  morning
- Buildings, Groups and Algebras
  afternoon
Thursday 6 October 2005
Brussels, Academy
9:30 - 17:50
Academy Contact Forum "Coding Theory and Cryptography"