Research Explorer

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Researcher

Joseph Thas

Publications & Research Data

Awards & Distinctions

159 Results

2025

Arcs, caps and generalisations in a finite projective space

James W. P. HirschfeldJoseph Thas

A1 Journal Article in MATHEMATICS

2023

Epimorphisms of generalized polygons, B : The octagons

Joseph ThasKoen Thas

A2 Journal Article in INNOVATIONS IN INCIDENCE GEOMETRY - ALGEBRAIC, TOPOLOGICAL AND COMBINATORIAL

Generalized quadrangles of order (s, s2), IV : translations, Moufang and Fong-Seitz

A1 Journal Article in DISCRETE MATHEMATICS

Suzuki-Tits ovoids through the years

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in ARCHIV DER MATHEMATIK

2022

Epimorphisms of generalized polygons A : the planes, quadrangles and hexagons

Joseph ThasKoen Thas

A1 Journal Article in JOURNAL OF GEOMETRY AND PHYSICS

2021

Covers of generalized quadrangles : 2. Kantor-Knuth covers and embedded ovoids

Joseph ThasKoen Thas

A1 Journal Article in FINITE FIELDS AND THEIR APPLICATIONS

2019

Regular pseudo-hyperovals and regular pseudo-ovals in even characteristic

A2 Journal Article in INNOVATIONS IN INCIDENCE GEOMETRY

2018

Covers of generalized quadrangles

Joseph ThasKoen Thas

A1 Journal Article in GLASGOW MATHEMATICAL JOURNAL

On k-caps in PG(n,q), with q even and n≥3

A1 Journal Article in DISCRETE MATHEMATICS

On k-caps in PG(n,q), with q even and n≥4

A1 Journal Article in DISCRETE MATHEMATICS

2017

Finite affine planes in projective spaces

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in COMBINATORICA

2016

General Galois geometries

James WP HirschfeldJoseph Thas

2015

Arcs, caps and codes

Open problems in finite projective spaces

James WP HirschfeldJoseph Thas

A1 Journal Article in FINITE FIELDS AND THEIR APPLICATIONS

2013

Characterizations of Segre varieties

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in JOURNAL OF COMBINATORIAL THEORY SERIES A

2012

A characterization of the finite Veronesean by intersection properties

Jeroen SchillewaertJoseph ThasHendrik Van Maldeghem

A1 Journal Article in ANNALS OF COMBINATORICS

Collineations of polar spaces with restricted displacements

Beukje TemmermansJoseph ThasHendrik Van Maldeghem

A1 Journal Article in DESIGNS CODES AND CRYPTOGRAPHY

Domesticity in generalized quadrangles

Beukje TemmermansJoseph ThasHendrik Van Maldeghem

A1 Journal Article in ANNALS OF COMBINATORICS

Generalized Veronesean embeddings of projective spaces, part II: the lax case

Z AkçaA BayarS EkmekçiR KayaJoseph ThasHendrik Van Maldeghem

A1 Journal Article in ARS COMBINATORIA

2011

Characterizations of Veronese and Segre varieties

Joseph ThasHendrik Van Maldeghem

A2 Journal Article in JOURNAL OF GEOMETRY

Domesticity in projective spaces

Beukje TemmermansJoseph ThasHendrik Van Maldeghem

A2 Journal Article in INNOVATIONS IN INCIDENCE GEOMETRY

Generalized Veronesean embeddings of projective spaces

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in COMBINATORICA

2010

A characterization of the Grassmann embedding of H(q), with q even

An De WispelaereJoseph ThasHendrik Van Maldeghem

A1 Journal Article in DESIGNS CODES AND CRYPTOGRAPHY

André embeddings of affine planes

Joseph ThasHendrik Van Maldeghem

Collineations and dualities of partial geometries

Beukje TemmermansJoseph ThasHendrik Van Maldeghem

A1 Journal Article in DISCRETE MATHEMATICS

Dualities and collineations of projective and polar spaces and of related geometries

Beukje TemmermansJoseph Thas

Minimal codewords in Reed-Muller codes

Jeroen SchillewaertLeo StormeJoseph Thas

A1 Journal Article in DESIGNS CODES AND CRYPTOGRAPHY

2009

Characterizations of Hermitian varieties by intersection numbers

Jeroen SchillewaertJoseph Thas

A1 Journal Article in DESIGNS CODES AND CRYPTOGRAPHY

Finite Generalized Quadrangles

Stanley E. PayneJoseph Thas

Finite translation generalized quadrangles

On collineations and dualities of finite generalized polygons

Beukje TemmermansJoseph ThasHendrik Van Maldeghem

A1 Journal Article in Combinatorica

SPG-reguli, SPG-systems, BLT-sets and sets with the BLT-property

A1 Journal Article in DISCRETE MATHEMATICS

Subquadrangles of order s of generalized quadrangles of order (s,s^2)

Joseph ThasKoen Thas

A2 Journal Article in INNOVATIONS IN INCIDENCE GEOMETRY

2008

A characterization of the natural embedding of the split Cayley hexagon H(q) in PG(6, q) by intersection numbers

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in EUROPEAN JOURNAL OF COMBINATORICS

Coding theory and cryptography II

Finite fields and Galois geometries

Finite geometries

A BlokhuisJWP HirschfeldD JungnickelJoseph Thas

Editorial material

Finite Geometries: Second Irsee Conference, 10-16 September 2006

Generalized hexagons and Singer geometries

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in DESIGNS CODES AND CRYPTOGRAPHY

2007

Finite geometries: classical problems and recent developments

A2 Journal Article in Rendiconti di Matematica

Partial Geometries

Bookchapter in Handbook of Combinatorial Designs

The uniqueness of 1-systems of W-5(q) satisfying the BLT-property, with q odd

A1 Journal Article in DESIGNS CODES AND CRYPTOGRAPHY

2006

Affine embeddings of (0, alpha)-geometries

Frank De ClerckNikias De FeyterJoseph Thas

A1 Journal Article in EUROPEAN JOURNAL OF COMBINATORICS

Coding theory and cryptography

Embeddings of small generalized polygons

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in FINITE FIELDS AND THEIR APPLICATIONS

Finite Moufang generalized quadrangles

Joseph ThasHendrik Van Maldeghem

A2 Journal Article in Journal of Mathematical Sciences

Finite translation generalized quadrangles: old results, new results, open problems

Joseph ThasKoen Thas

Maximal arcs in PG(2,q) and partial flocks of the quadratic cone

Nick HamiltonJoseph Thas

A1 Journal Article in ADVANCES IN GEOMETRY

Subquadrangles of order s of generalized quadrangles of order (s,s^2), part III

Joseph ThasKoen Thas

A1 Journal Article in JOURNAL OF COMBINATORIAL THEORY SERIES A

Translation generalized quadrangles

Joseph ThasKoen ThasHendrik Van Maldeghem

Translation generalized quadrangles in even characteristic

Joseph ThasKoen Thas

A1 Journal Article in COMBINATORICA

2005

Finite geometries : selected papers form the first Irsee conference, 16-21 February, 2003

Finite geometries, first Irsee conference, 16-21 February, 2003 : preface

Aart BlokhuisJ.W.P. HirschfeldDieter JungnickelJoseph Thas

Editorial material

Generalized polygons in finite projective spaces

Joseph ThasHendrik Van Maldeghem

Incidence geometry

Mathematics and genomics

On Ferri's characterization of the finite quadric Veronesean V-2(4)

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in JOURNAL OF COMBINATORIAL THEORY SERIES A

On semi-pseudo-ovoids

Stefaan De WinterJoseph Thas

A1 Journal Article in JOURNAL OF ALGEBRAIC COMBINATORICS

On the history of flocks

Bookchapter in Liber memorialis R. Delanghe

Some characterizations of finite Hermitian Veroneseans

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in DESIGNS CODES AND CRYPTOGRAPHY

The stabilizer of the Adelaide oval

SE PayneJoseph Thas

A1 Journal Article in DISCRETE MATHEMATICS

The uniqueness of the 1-system of Q(-) (7,q),q even

Deirdre LuyckxJoseph Thas

A1 Journal Article in DISCRETE MATHEMATICS

Trialities and 1-systems of Q(+)(7,q)

Deirdre LuyckxJoseph Thas

A1 Journal Article in DESIGNS CODES AND CRYPTOGRAPHY

2004

A characterization of the semipartial geometries T-2*(U) and T-2*(B)

Frank De ClerckStefaan De WinterJoseph Thas

A1 Journal Article in EUROPEAN JOURNAL OF COMBINATORICS

A geometrical construction of the oval(s) associated with an alpha-flock

MR BrownJoseph Thas

A1 Journal Article in ADVANCES IN GEOMETRY

Characterizations of the finite quadric Veroneseans V-n(2n)

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in QUARTERLY JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING

Classification of finite Veronesean caps

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in EUROPEAN JOURNAL OF COMBINATORICS

Full embeddings of the finite dual split Cayley hexagons

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in COMBINATORICA

Generalized polygons in finite projective spaces

Joseph ThasHendrik Van Maldeghem

Hermitian Veroneseans over finite fields

BN CoopersteinJoseph ThasHendrik Van Maldeghem

A1 Journal Article in FORUM MATHEMATICUM

Locally hermitian 1-systems of Q(+)(7,q)

Deirdre LuyckxJoseph Thas

A1 Journal Article in DISCRETE MATHEMATICS

Semipartial geometries, arising from locally Hermitian 1-systems of W-5(q)

Deirdre LuyckxJoseph Thas

A1 Journal Article in BULLETIN OF THE BELGIAN MATHEMATICAL SOCIETY-SIMON STEVIN

SPG-Reguli satisfying the polar property and a new semipartial geometry

Stefaan De WinterJoseph Thas

A1 Journal Article in DESIGNS CODES AND CRYPTOGRAPHY

Subquadrangles of order s of generalized quadrangles of order (s,s^2), part I

Matthew R. BrownJoseph Thas

A1 Journal Article in JOURNAL OF COMBINATORIAL THEORY SERIES A

Subquadrangles of order s of generalized quadrangles of order (s,s^2), part II

Matthew R. BrownJoseph Thas

A1 Journal Article in JOURNAL OF COMBINATORIAL THEORY SERIES A

2003

Characterizations of quadric and Hermitian Veroneseans

Joseph ThasHendrik Van Maldeghem

A2 Journal Article in Journal of geometry

Derivation of m-systems

Deirdre LuyckxJoseph Thas

A1 Journal Article in EUROPEAN JOURNAL OF COMBINATORICS

Dual partial quadrangles embedded in PG(3,q)

Frank De ClerckN DuranteJoseph Thas

A1 Journal Article in ADVANCES IN GEOMETRY

Finite Geometries

A BlokhuisJ HirschfeldD JungnickelJoseph Thas

On 1-systems of Q(6,q),q even

Deirdre LuyckxJoseph Thas

A1 Journal Article in DESIGNS CODES AND CRYPTOGRAPHY

Some new maximal sets of mutually orthogonal Latin squares

Patrick GovaertsD JungnickelLeo StormeJoseph Thas

A1 Journal Article in DESIGNS CODES AND CRYPTOGRAPHY

Switching of generalized quadrangles of order s and applications

A1 Journal Article in ADVANCES IN GEOMETRY

2002

A characterization of Q(5,q) using one subquadrangle Q(4,q).

Leen BrounsJoseph ThasHendrik Van Maldeghem

A1 Journal Article in EUROPEAN JOURNAL OF COMBINATORICS

Characterizations of quadric and Hermitian Veroneseans over finite fields

Joseph ThasHendrik Van Maldeghem

m-Clouds in generalized hexagons.

Leen BrounsJoseph ThasHendrik Van Maldeghem

A1 Journal Article in DISCRETE MATHEMATICS

New upper bounds for the sizes of caps in projective spaces

Leo StormeJoseph ThasSKJ Vereecke

A2 Journal Article in Journal of geometry

New upper bounds on caps in PG(n,q).

Leo StormeJoseph ThasSKJ Vereecke

A2 Journal Article in Journal of geometry

The uniqueness of the 1-system of Q(-)(7, q), q odd.

Deirdre LuyckxJoseph Thas

A1 Journal Article in JOURNAL OF COMBINATORIAL THEORY SERIES A

Translation generalized quadrangles of order (s,s(2)), s even, and eggs

A1 Journal Article in JOURNAL OF COMBINATORIAL THEORY SERIES A

2001

1-systems of Q(6,q) and Q-(7,q): recent results

Deirdre LuyckxJoseph Thas

A result on spreads of the generalized quadrangle T-2(O), with O an oval arising from a flock, and applications.

A1 Journal Article in EUROPEAN JOURNAL OF COMBINATORICS

Characterizations of translation generalized quadrangles.

A1 Journal Article in DESIGNS CODES AND CRYPTOGRAPHY

Flocks and locally hermitian 1-systems of Q(6,q)

Deirdre LuyckxJoseph Thas

Flocks and locally hermitian 1-systems of Q(6,q)

Deirdre LuyckxJoseph Thas

Flocks and partial flocks of quadrics : a survey

A1 Journal Article in JOURNAL OF STATISTICAL PLANNING AND INFERENCE

Geometrical constructions of flock generalized quadrangles

A1 Journal Article in JOURNAL OF COMBINATORIAL THEORY SERIES A

Lax embeddings of generalized quadrangles in finite projective spaces

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in PROCEEDINGS OF THE LONDON MATHEMATICAL SOCIETY

On generalized k-arcs in PG(2n, q).

B CoopersteinJoseph Thas

A2 Journal Article in ANNALS OF COMBINATORICS

Ovoids, spreads and m-systems of finite classical polar spaces.

A2 Journal Article in Surveys in Combinatorics, 2001' (ed. J.W.P. Hirschfeld), London Math. Soc. Lect. Note Ser. 288, Cambridge Univ. Press, 2001

SPG systems and semipartial geometries.

A2 Journal Article in ADVANCES IN GEOMETRY

2000

Classification of embeddings of the flag geometries of projective planes in finite projective spaces, part 1

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in JOURNAL OF COMBINATORIAL THEORY SERIES A

Classification of embeddings of the flag geometries of projective planes in finite projective spaces, part 2

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in JOURNAL OF COMBINATORIAL THEORY SERIES A

Classification of embeddings of the flag geometries of projective planes in finite projective spaces, part 3

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in JOURNAL OF COMBINATORIAL THEORY SERIES A

Flocks and locally hermitian 1-systems of Q(6,q)

Deirdre LuyckxJoseph Thas

Some remarks on embeddings of the flag geometries of projective planes in finite projective spaces.

Joseph ThasHendrik Van Maldeghem

A2 Journal Article in Journal of geometry

1999

Generalized quadrangles of order (s, s2) : recent results

A1 Journal Article in DISCRETE MATHEMATICS

Generalized quadrangles of order (s, s2), III

A1 Journal Article in JOURNAL OF COMBINATORIAL THEORY SERIES A

Lax embeddings of polar spaces in finite projective spaces

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in FORUM MATHEMATICUM

On embeddings of the flag geometries of projective planes in finite projective spaces

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in DESIGNS CODES AND CRYPTOGRAPHY

1998

3-Regularity in generalized quadrangles : a survey, recent results and the solution of a longstanding conjecture

A2 Journal Article in Rend. Circ. Mat. Palermo, Ser. II

Embeddings of geometries in finite projective spaces : a survey

Finite geometries, varieties and codes

Flat lax and weak lax embeddings of finite generalized hexagons

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in EUROPEAN JOURNAL OF COMBINATORICS

Generalized quadrangles weakly embedded in finite projective space

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in JOURNAL OF STATISTICAL PLANNING AND INFERENCE

Proceedings of the 3rd international conference on finite geometries and combinatorics at Deinze

Some new classes of extended generalized quadrangles of order (q+1,q-1)

A1 Journal Article in BULLETIN OF THE BELGIAN MATHEMATICAL SOCIETY-SIMON STEVIN

Translation ovoids of generalized quadrangles and hexagons.

Iris BloemenJoseph ThasHendrik Van Maldeghem

A1 Journal Article in GEOMETRIAE DEDICATA

1997

G. Tallini and his work

A2 Journal Article in Results in mathematics

Generalized quadrangles and the axiom of Veblen

Joseph ThasHendrik Van Maldeghem

Generalized quadrangles of order (s, s2), II

A1 Journal Article in JOURNAL OF COMBINATORIAL THEORY SERIES A

Partial flocks of quadratic cones with a point vertex in PG(n,q), n odd

CM O'KeefeJoseph Thas

A1 Journal Article in JOURNAL OF ALGEBRAIC COMBINATORICS

Sub-weakly embedded singular and degenerate polar spaces

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in GEOMETRIAE DEDICATA

Symplectic spreads in PG(3,q), inversive planes and projective planes

A1 Journal Article in DISCRETE MATHEMATICS

1996

Collineations of Subiaco and Cherowitzo hyperovals

CM O'KeefeJoseph Thas

A2 Journal Article in BULLETIN OF THE BELGIAN MATHEMATICAL SOCIETY-SIMON STEVIN

Elation generalized quadrangles of order (p, t), p prime, are classical

Iris BloemenJoseph ThasHendrik Van Maldeghem

A1 Journal Article in JOURNAL OF STATISTICAL PLANNING AND INFERENCE

Embedded thick finite generalized hexagons in projective space

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in JOURNAL OF THE LONDON MATHEMATICAL SOCIETY-SECOND SERIES

k-Arcs, hyperovals, partial flocks and flocks

m-systems and partial m-systems of polar spaces

Joseph ThasEE Shult

A2 Journal Article in DESIGNS CODES AND CRYPTOGRAPHY

Orthogonal, symplectic and unitary polar spaces sub-weakly embedded in projective space

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in COMPOSITIO MATHEMATICA

Partial geometries

Bookchapter in CRC handbook of combinatorial designs

1995

Constructions of polygons from buildings

EE ShultJoseph Thas

A1 Journal Article in PROCEEDINGS OF THE LONDON MATHEMATICAL SOCIETY

Generalized Polygons

Bookchapter in Handbook of incidence of geometry

Ovoids of the quadric Q(2N,Q)

CM O'KeefeJoseph Thas

A1 Journal Article in EUROPEAN JOURNAL OF COMBINATORICS

Projective geometry over a finite field

Bookchapter in Handbook of incidence geometry

The classification of finite generalized quadrangles admitting a group acting transitively on ordered pentagons

Joseph ThasHendrik Van Maldeghem

A1 Journal Article in JOURNAL OF THE LONDON MATHEMATICAL SOCIETY-SECOND SERIES

κ-arcs and partial flocks

Leo StormeJoseph Thas

A1 Journal Article in LINEAR ALGEBRA AND ITS APPLICATIONS

1994

Generalized quadrangles of order (s, s2), I

A1 Journal Article in JOURNAL OF COMBINATORIAL THEORY SERIES A

K-arcs and dual K-arcs

Leo StormeJoseph Thas

A1 Journal Article in DISCRETE MATHEMATICS

M-systems of polar spaces

EE ShultJoseph Thas

A1 Journal Article in JOURNAL OF COMBINATORIAL THEORY SERIES A

Recent developments in the theory of finite generalized quadrangles

A2 Journal Article in Academiae Analecta

Spreads and ovoids of finite generalized quadrangles

Joseph ThasSE Payne

A1 Journal Article in GEOMETRIAE DEDICATA

The affine place AG(2,q), q-odd, has a unique one-point extension

A1 Journal Article in INVENTIONES MATHEMATICAE

1993

A characterization of the Fisher-Thas-Wadcer flocks

A2 Journal Article in SIMON STEVIN : A QUARTERLY JOURNAL OF PURE AND APPLIED MATHEMATICS

Flocks and partial flocks of quadratic cone in PG(3,q)

Joseph ThasC HerssensFrank De Clerck

Intersection of arcs and normal rational curves in spaces of odd characteristic

Leo StormeJA Szonyi

M.D.S. codes and arcs in PG(n,q) with q even : an improvement of the bounds of Bruen, Thas, and Blokhuis

Leo StormeJoseph Thas

A1 Journal Article in JOURNAL OF COMBINATORIAL THEORY SERIES A

1992

A combinatorial characterization of Hermitian curves

A2 Journal Article in Journal Alg. Combin.

Complete K-arcs in PG(N, Q), Q even

Leo StormeJoseph Thas

A1 Journal Article in DISCRETE MATHEMATICS

Desarguesian finite generalized quadrangles are classical or dual classical

Joseph ThasS PayneHendrik Van Maldeghem

A2 Journal Article in DESIGNS CODES AND CRYPTOGRAPHY

Hyperplanes of dual polar spaces and the spin module

EE ShultJoseph Thas

A1 Journal Article in ARCHIV DER MATHEMATIK

M.D.S. codes and arcs in projective spaces : a survey

Old and new results on spreads and ovoids of finite classical polar spaces

A2 Journal Article in Annals of Discrete Math.

On a generalization of a theorem of Segre, B

Joseph ThasPJ CameronA Blokhuis

A1 Journal Article in GEOMETRIAE DEDICATA

1991

A characterization of hermitian curves

Joseph ThasJ HirschfeldLeo StormeJ Voloch

A2 Journal Article in JOURNAL OF GEOMETRY

General Galois geometries

James WP HirschfeldJoseph Thas

Generalized quadrangles, BLT-sets, and Fisher flocks

Joseph ThasS Payne

Half Moufang implies Moufang for finite generalized quadrangles

Joseph ThasS PayneHendrik Van Maldeghem

A1 Journal Article in INVENTIONES MATHEMATICAE

Partial geometries and copolar spaces

Frank De ClerckH GevaertJoseph Thas

1974

De D-struktuur van de deelsemigroepen van een semigroep / Francis Pastijn.

Francis J. PastijnJoseph Thas