Seminars on Incidence Geometry and related activities
Schedule

Monday 30 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)
 16:00  17:00 N.S.N. Sastry

Wednesday 4 March 2015
Ghent, S22, lecture room A
16:00  17:00
 16:00  17:00 Klaus Metsch
ErdősKoRado sets for finite classical polar spaces
 16:00  17:00 Klaus Metsch

Tuesday 18 November 2014
Ghent, S22, meeting room
14:30  15:30
 14:30  15:30 Ludmila Tsiovkina
On antipodal distanceregular covers of complete graphs related to finite 2transitive simple groups
 15:30  16:40 James Parkinson
A Multiplicative Ergodic Theorem for padic Lie groups
 14:30  15:30 Ludmila Tsiovkina

Wednesday 10 September 2014
Ghent
14:00  17:00
 14:00  14:50 Mark Ioppolo
Neighbourtransitive 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
 14:00  14:50 Mark Ioppolo

Thursday 8 May 2014
Gent, S22
15:00  16:00
 16:00  17:00 Brett Stevens
Optimizing an imperfect tournament
 16:00  17:00 Brett Stevens

Monday 9 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 3designs
 14:30  15:30 Hao Shen

Friday 6 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
CameronLiebler type sets of kspaces
 14:30  15:30 Anamari Nakic

Thursday 28 November 2013
Gent, Lecture room A
16:30  17:30
 16:30  17:30 Jeroen Schillewaert
Small maximal partial ovoids in Generalized Quadrangles
 16:30  17:30 Jeroen Schillewaert

Thursday 7 November 2013
Gent, lecture room A
15:30  16:30
 15:30  16:30 Anamari Nakic
On the designs with prescribed automorphism groups
 15:30  16:30 Anamari Nakic

Friday 25 October 2013
Gent, S22, meeting room
14:30  15:30
 14:30  15:30 Peter Abramenko
A characterization of unipotent radicals of parabolic subgroups
 14:30  15:30 Peter Abramenko

Thursday 3 October 2013
Ghent, S22
15:30  16:30
 15:30  16:30 David Glynn
Graphs in Finite Geometry
 15:30  16:30 David Glynn

Thursday 22 August 2013
Gent, S22, lecture room C
15:00  16:00
 15:00  16:00 Jürgen Bierbrauer
A bound on permutation codes
 15:00  16:00 Jürgen Bierbrauer

Thursday 7 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
 14:00  15:00 Sasha Ivanov

Tuesday 5 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
 14:00  15:00 Sasha Ivanov

Monday 4 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
 10:00  11:00 Sasha Ivanov

Thursday 8 November 2012
Gent, LT Emmy Noether (S25)
15:00  16:30
 15:00  16:00 Bruce Cooperstein
Witttype Theorems for exceptional Lie Geometries
 16:00  16:30 Bruce Cooperstein
The future of mathematical textbooks
 15:00  16:00 Bruce Cooperstein

Tuesday 16 October 2012
Gent, meeting room (S22)
11:00  12:00
 11:00  12:00 David Glynn
New Methods in Projective Geometry, Algebra and Combinatorics
 11:00  12:00 David Glynn

Thursday 4 October 2012
Ghent, Lecture room B
11:30  12:30
 11:30  12:30 Jack Koolen
Some recent progress in distanceregular graphs
 11:30  12:30 Jack Koolen

Thursday 29 March 2012
Ghent, LT Emmy Noether (S25)
14:00  15:00
 14:00  15:00 Vedran Krcadinac
On unitals with collinear pedal sets
 14:00  15:00 Vedran Krcadinac

Thursday 15 March 2012
Gent, lecture room A
14:00  15:00
 14:00  15:00 Vedran Krcadinac
Large symmetric configurations in translation planes
 14:00  15:00 Vedran Krcadinac

Thursday 24 November 2011
Ghent, meeting room (S22)
15:00  16:00
 15:00  16:00 Jürgen Bierbrauer
Constructions of semifields
 15:00  16:00 Jürgen Bierbrauer

Thursday 27 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
 14:00  14:50 Ulrich Dempwolff

Thursday 13 October 2011
Ghent, lecture room A
15:00  16:00
 15:00  16:00 Morgan Rodgers
CameronLiebler line classes from cyclic groups
 15:00  16:00 Morgan Rodgers

Thursday 29 September 2011
Ghent, lecture room B
15:00  16:00
 15:00  16:00 Bernhard Mühlherr
Multiple trees and generalizations
 15:00  16:00 Bernhard Mühlherr

Thursday 7 April 2011
UGent, S25, Emmy Noether
13:00  18:30
 13:00  13:50 Chris Godsil (Waterloo)
ErdösKoRado 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 PhDdefence of Frédéric. After the defence there will be a drink
 13:00  13:50 Chris Godsil (Waterloo)

Friday 25 February 2011
UGent
 15:00 Giuseppe Marino
Towards the classification of rank two semifields 6dimensional over their center
 16:00 Jason Williford
Graphs and Geometries Derived from KacMoody Algebras
 15:00 Giuseppe Marino

Friday 28 January 2011
S22  lecture room B
15:00  16:50
 15:00  16:50 Jan De Beule
The polynomial method in Galois geometry
 15:00  16:50 Jan De Beule

Wednesday 19 January 2011
Auditorium B, S22
11:00  12:00
 11:00  12:00 Max Horn
Connectivity of flipflop geometries
 11:00  12:00 Max Horn

Friday 22 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
 14:30  15:20 Hendrik Van Maldeghem

Friday 15 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.
 14:30  15:15 Maarten De Boeck

Friday 24 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.
 14:00  14:45 Giuseppe Marino (Seconda Universita degli Studi di Napoli, Caserta, Italia):

Friday 5 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
 15:00 Bart De Bruyn

Friday 26 February 2010
UGent, S25, Emmy Noether LT
 15:00 Ilaria Cardinali (University of Siena)
On Weyl modules for the symplectic group
 15:00 Ilaria Cardinali (University of Siena)

Friday 19 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)
 15:00 Simon Huggenberger (UGent)

Tuesday 2 February 2010
UGent, S22, Lecture Room A
 15:00 Giuseppe Marino (Seconda Universitá degli Studi di Napoli)
Algebraic curves and semifields
 15:00 Giuseppe Marino (Seconda Universitá degli Studi di Napoli)

Friday 22 January 2010
UGent, S22, Lecture Room C
 15:00 Stanley Payne (University of Colorado Denver)
An Introduction to qClan Geometries in Characteristic 2(A list of errata in the monograph on the subject by Cardinali and Payne can be found here.)
 15:00 Stanley Payne (University of Colorado Denver)

Friday 18 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
 15:00 Geertrui Van de Voorde (UGent)

Friday 11 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
 15:00 Koen Struyve (UGent)

Friday 27 November 2009
UGent, S25, Emmy Noether LT
 15:00 Nóra Viola Harrach (Eötvös Loránd University, Budapest)
Small point sets of PG(n,q^{3}) intersecting each ksubspace in 1 mod q points
 16:00 Aart Blokhuis (Technische Universiteit Eindhoven)
On the structure of 3nets embedded in a projective plane
 15:00 Nóra Viola Harrach (Eötvös Loránd University, Budapest)

Friday 20 November 2009
UGent, S25, Emmy Noether LT
 16:00 Kris Coolsaet (UGent)
Ovoids of SL(2,q)
 16:00 Kris Coolsaet (UGent)

Friday 13 November 2009
UGent, S25, Emmy Noether LT
 15:00 Edwin van Dam (Tilburg University)
Cometric Qantipodal association schemes  uniformity and linked systems
 16:00 Willem Haemers (Tilburg University)
Searching for GodsilMcKay switching sets
 15:00 Edwin van Dam (Tilburg University)

Friday 6 November 2009
UGent, S25, Emmy Noether LT
 16:00 Frank De Clerck
Perpsystems, an overview
 16:00 Frank De Clerck

Friday 23 October 2009
UGent, S25, Emmy Noether LT
 16:00 Yves Edel
Geometrical and combinatorial aspects of APN functions
 16:00 Yves Edel

Friday 16 October 2009
UGent, S25, Emmy Noether LT
 15:00 Frédéric Vanhove
Eigenvalue techniques applied to polar spaces
 15:00 Frédéric Vanhove

Wednesday 7 October 2009
UGent, S25, Emmy Noether LT
 16:00 Chris Godsil
Quantum Geometry: MUB's and SICPOVM's
This talk is meant for a general mathematical audience and is coorganised by Prime. Students should not hesitate to attend the colloquium!
 16:00 Chris Godsil

Friday 12 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 $G_n$
 14:00  14:45 Stefan van Zwam

Friday 15 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)
 14:00  14:45 Anja Hallez

Friday 8 May 2009
UGent, S22, Lecture Room B
 15:00  15:45 Tamas Szonyi
A qanalogue of the theorem of HiltonMilner
 16:00  16:45 Tamas Szonyi
On the stability of Baer subplanes
 15:00  15:45 Tamas Szonyi

Friday 6 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.
 15:00  15:50 Michel Lavrauw

Friday 13 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.
 14:00  14:45 Nicola Durante

Friday 12 December 2008
Gent, S22, Lecture Room A
 John Bamberg
Onedimensional affine flagtransitive linear spaces
Abstract: In 1994, Buekenhout, Delandtsheer, Doyen, Kleidman, Liebeck and Saxl announced the classification of finite flagtransitive 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 flagtransitive linear spaces and a construction of new ones. This is joint work with Michael Pauley (The University of Western Australia).
 John Bamberg

Friday 5 December 2008
Gent, S22, Lecture Room A
 Stefaan De Winter
An extremal characterization of projective planes
 Stefaan De Winter

Friday 14 November 2008
S22, Lecture Room A
14:00  16:00

Tuesday 10 June 2008
UGent, S22, Lecture Room B
 10:30  11:20 Mariusz Kwiatkowski
Adjacency and opposite relations on polar Grassmannians
 10:30  11:20 Mariusz Kwiatkowski

Friday 6 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.
 13:30  14:20 Valentina Pepe

Friday 23 May 2008
Ghent, S22, Lecture Room B
 14:00  14:50 Geertrui Van de Voorde
The code of points and kspaces of PG(n,q)
 15:00  15:50 Rocco Trombetti
Translation dual of a semifield
 14:00  14:50 Geertrui Van de Voorde

Friday 25 April 2008
UGent

Thursday 17 January 2008
UGent, S22, Lecture Room B
 14:00 Moon Ho Lee
Jacket matrices
 14:00 Moon Ho Lee

Thursday 6 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 GreyRankin bound and quasiperfect codes.
 16:00  17:00 Stefan Dodunekov

Friday 23 November 2007
UGent, S22, Lecture Room A
 16:30  17:30 Heide Sticker
A full classification of the complete karcs of PG(2,23) and PG(2,25)
 16:30  17:30 Heide Sticker

Friday 12 October 2007
UGent, S22, Lecture room A
 14:30  15:20 Willem Haemers
Tripartite distanceregular graphs
 15:30  16:20 Aart Blokhuis
Solution of the Kakeya problem in the plane
 14:30  15:20 Willem Haemers

Friday 14 September 2007
UGent, S22, Lecture room A
 15:30  16:30 Ilaria Cardinali
On the nucleus of the Grassmannembedding of symplectic dual polar spaces in characteristic 2
 15:30  16:30 Ilaria Cardinali

Thursday 14 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)
Nonabelian representations of pointline geometries
 11:30  12:20 N. S. Narasimha Sastry (Indian Statistical Institute, Bangalore, India)
Codes related to some permutation groups
 10:30  11:20 B. K. Sahoo (National Institute of Technology, Rourkela, India)

Friday 1 June 2007
UGent, S22, Lecture Room 7
 14:00  14:45 Michael Giudici
Edgeprimitive graphs
 15:00  15:45 James Hirschfeld
Curves over finite fields
 14:00  14:45 Michael Giudici

Friday 11 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
 14:00  14:50 Geertrui Van de Voorde

Friday 16 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.
 14:00  15:00 Jan De Beule

Friday 2 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.
 14:00  14:50 Stefaan De Winter

Friday 19 January 2007
UGent, S22, Lecture room 7
 14:00  15:00 Jeroen Schillewaert
A characterization of quadrics by intersection numbers
 14:00  15:00 Jeroen Schillewaert

Friday 22 December 2006
UGent, S22, Lecture room 7
 14:00  14:50 An De Wispelaere
Regular partitions of (weak) finite generalized polygons
 14:00  14:50 An De Wispelaere

Friday 8 December 2006
UGent, S22, Lecture room 7
 14:00 Tom De Medts
Finite special Moufang sets
 14:00 Tom De Medts

Friday 10 November 2006
UGent, S22, Lecture room 7
14:00  15:00
 John Bamberg
3/2transitive groups
 John Bamberg

Friday 27 October 2006
UGent, S22, Lecture room 7
14:00  15:00

Thursday 5 October 2006
Gent, Lecture room 7
15:00  16:00
 15:00  15:50 Ivan Landjev
On multiple deletion codes
 15:00  15:50 Ivan Landjev

Wednesday 20 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
 14:00  14:45 G. Pearce (University of Western Australia)

Tuesday 4 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 ReeTits 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' centerconjecture for spherical buildings
 14:00  14:50 Peter Abramenko (Virginia)

Friday 12 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 4dimensional projective geometries
 11:00  12:00 Kevin Jennings (University College Dublin)

Friday 5 May 2006
Gent, Lecture room 7
14:00  16:00
 Kris Coolsaet
An algebraic approach to the perfect ReeTits octagons
 Kris Coolsaet

Friday 17 March 2006
Gent, Room 2 (Meeting room)
 14:00  16:00 Nick Gill
Linetransitive linear spaces
 14:00  16:00 Nick Gill

Friday 20 January 2006
UGent seminar on incidence geometry 14:00 Jan De Beule
On maximal partial spreads of H(5,q^{2})
 14:00 Jan De Beule

Friday 16 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
 16:00 An De Wispelaere

Friday 9 December 2005
Ghent (lecture room 7)
UGentULBVUBseminar on Incidence Geometry 
Friday 2 December 2005
UGent seminar on Incidence Geometry 15:00  15:50
Demo and user instructions for the new preprint server.
 15:00  15:50

Friday 18 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
 14:30  15:20 Cheryl Praeger (University of Western Australia, Perth)

Thursday 17 November 2005
Brussels (ULB, Auditoire Forum E)
 12:15 Cheryl Praeger
Groups, probability, algorithms: computing with giants
 12:15 Cheryl Praeger

Wednesday 9 November 2005
Brussels
UGentULBVUBseminar on Incidence Geometry 
Friday 28 October 2005
 14:00  16:00 Stefaan De Winter
The van LintSchrijver partial geometry
 14:00  16:00 Stefaan De Winter

Wednesday 19 October 2005
Brussels, Academy
organised by National Comite of Mathematics 14:30 H. Van Maldeghem
Buildings and Groups: a simple marriage of Lie type
 14:30 H. Van Maldeghem

Saturday 15 October 2005
Gent, Lecture room 7

Friday 14 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
 Special
Seminar Incidence Geometry, a prelude to the
colloquium in honour of J. Tits

Friday 7 October 2005
Brussels, Academy
9:30  17:50
Academy Contact Forum "Coding Theory and Cryptography"