Academic Honours
-
Laureaat van de Prijs van de Koninklijke Academie voor
Wetenschappen, Letteren en Schone Kunsten van België, Klasse der
Wetenschappen (1988)
Hall Medal of the Institute of Combinatorics and its Applications, Canada (1999)
Euler Medal of the Institute of Combinatorics and its Applications, Canada (2021)
List of Publications
- H. VAN MALDEGHEM, σ-Homotopy Groups of Coxetercomplexes, Simon Stevin 58 (1984), 35–63.
- H. VAN MALDEGHEM, Characterization of the Free σ-Homotopy Groups of Coxetercomplexes, Simon Stevin 60 (1986), 353– 368.
-
H. VAN MALDEGHEM, Non-Classical Triangle Buildings, Geom. Dedicata 24 (1987), 123–206.
- G. HANSSENS & H. VAN MALDEGHEM, A New Look at the Classical Generalized Quadrangles, Ars Combin. 24 (1987), 199–210.
-
H. VAN MALDEGHEM,Valuations on PTR's Induced by Triangle Buildings, Geom. Dedicata 26 (1988), 29–84.
-
G. HANSSENS & H. VAN MALDEGHEM, A Note on Near-Barbilian Planes, Geom. Dedicata 29 (1989), 233–235.
-
H. VAN MALDEGHEM, Generalized Polygons with Valuation, Arch. Math. 53 (1989), 513–520.
- H.VAN
MALDEGHEN, Affine Buildings of Type C2
, Academia
Analecta, Klasse der Wetenschappen 51 (1989),
37–52.
-
H. VAN MALDEGHEM, Generalized Quadrangles with Valuation, Geom. Dedicata 35 (1990), 77–87.
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M. JOSWIG & H. VAN MALDEGHEM, An Essay on the Ree Octagons, J. Alg. Combin. 4 (1995), 145–164.
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L. STORME & H. VAN MALDEGHEM, Cyclic Caps in PG(3, q), Geom. Dedicata 56 (1995), 271–284.
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L. KRAMER & H. VAN MALDEGHEM, Compact Ovoids in Quadrangles – I: Geometric Constructions, Geom. Dedicata 78 (1999), 279–300.
L. KRAMER & H. VAN MALDEGHEM, Corrections to: "Compact ovoids in quadrangles. I. Geometric constructions, II Compact ovoids in quadrangles. III. Clifford algebras and isoparametric hypersurfaces”, Geom. Dedicata 86 (2001), 249. -
E. GOVAERT & H. VAN MALDEGHEM, Two remarks on generalized hexagons, J. Geom. 67 (2000), 111–116.
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H. VAN MALDEGHEM, Regular actions on generalized polygons, Int. J. Math. 2 (2002), 101–118.
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L.KUIJKEN & H. VAN MALDEGHEM, Fibered geometries, Discrete Math. 255 (2002), 259–274.
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B. MÜHLHERR & H. VAN MALDEGHEM, Codistances in buildings, Innov. Incid. Geom. 10 (2009), 81–91
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T. DE MEDTS & H. VAN MALDEGHEM, Moufang sets of type F4, Math. Z. 265 (2010), 511–527.
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K. STRUYVE & H. VAN MALDEGHEM, Affine twin R-buildings, Discrete Math. 310 (2010), 3278–3286.
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F. HAOT, K. STRUYVE & H. VAN MALDEGHEM, Ree geometries, Forum Math. 23 (2011), 75–98.
- T. GRUNDHÖFER en H.VAN MALDEGHEM, Local sharply transitive actions on finite generalized quadrangles, Ann. Comb. 15 (2011), 69–80.
- R. KÖHL, K. MÖSER & H. VAN
MALDEGHEM, The endomorphism
type of certain bipartite
graphs and a
characterization of
projective planes, Graphs and
Combinatorics 29
(2013), 253–257.
- A. DEVILLERS, J.
PARKINSON & H. VAN
MALDEGHEM, Automorphisms and
opposition in twin
buildings, J. Aust. Math.
Soc. 94
(2013), 189–201.
- T. GRUNDHÖFER, M. STROPPEL
& H. VAN MALDEGHEM,
Unitals admitting all
translations, J. Combin. Des.
21 (2013),
419–431.
- A. DE SCHEPPER & H. VAN MALDEGHEM, Graphs, defined by Weyl distance or incidence, that determine a vector space, Linear Alg. Appl. 449 (2014), 435–464.
- H.
VAN MALDEGHEM, Characterizations
of trialities of
type Iid in
buildings of type D4, in "Groups of
exceptional Type,
Coxeter Groups and
Related Geometries"
(ed. N.S.
N. Sastry), Springer
Proceedings in
Mathematics &
Statistics 82,
Springer, 2014.
-
B.
MÜHLHERR, K.
STRUYVE & H.
VAN
MALDEGHEM, Descent
in affine
buidlings, I.
Large minimal
angles, Trans.
Amer. Math. Soc. 366
(2014), 4345–4366.
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J. SCHILLEWAERT & H. VAN MALDEGHEM, Imbrex geometries, J. Combin. Theory Ser. A 127 (2014), 286–302.
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J. SCHILLEWAERT & H. VAN MALDEGHEM, Projective planes over 2-dimensional quadratic algebras, Adv. Math. 262 (2014), 784–822.
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B. DE BRUYN & H. VAN MALDEGHEM, Non-embeddable polar spaces, Münster J. Math. 7 (2014), 557–588
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B. DE BRUYN & H. VAN MALDEGHEM, Dual polar spaces of rank 3 defined over quadratic alternative division algebras, J. Reine
Angew. Math. 715 (2016), 39–74. -
J. SCHILLEWAERT & H. VAN MALDEGHEM, A combinatorial characterization of the Lagrangian Grassmannian LG(3,6), Glasgow Math. J. 58 (2016), 293–311.
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Th. GRUNDHÖFER, M. J. STROPPEL & H. VAN MALDEGHEM, A non-classical unital of order four with many translations, Discr. Math. 339 (2016), 2987–2993.
- J. A. THAS & H. VAN MALDEGHEM, Finite affine planes in projective spaces, Combinatorica 37 (2017), 283–311.
- J. SCHILLEWAERT & H. VAN MALDEGHEM, On the varieties of the second row of the split Freudenthal-Tits Magic Square, Ann. Inst. Fourier 67 (2017), 2265–2305.
- T. GRUNDHÖFER, M. STROPPEL & H. VAN MALDEGHEM, Embeddings of unitals such that each block is a subline, Australas. J. Combin. 79 (2021), 295–301.
- J.
BOKOWSKI
& H. VAN MALDEGHEM,
On a smallest
topological triangle
free (n4)
point-line
configuration, Art Discr.
Appl. Math. 4 (2021)
# P3.08, 17pp.
- A. M. COHEN, A. DE SCHEPPER, J. SCHILLEWAERT & H. VAN MALDEGHEM, Shult's Haircut Theorem revisited, European J. Combin. 102 (2022), Paper No. 103503, 16pp.
- A. DE SCHEPPER, N. S. N. SASTRY & H. VAN MALDEGHEM, Buildings of exceptional type in buildings of type E7, Dissertationes Math. 573 (2022), 1–80.
- T. GRUNDHÖFER, M. STROPPEL & H. VAN MALDEGHEM, Finite subunitals of the Hermitian unitals, J. Geom. 113 (2022), 1–8.
- A.
DE SCHEPPER, J.
SCHILLEWAERT, H. VAN
MALDEGHEM & M.
VICTOOR, A geometric
characterization of
Hjelmslev-Moufang
planes, Quart. J.
Math. 73
(2022), 369–394.
- T. GRUNDHÖFER, M. STROPPEL & H. VAN MALDEGHEM, Linear spaces embedded into projective space via Baer sublines, Combinatorial Theory 2 (2022), #4, 14pp.
- T. GRUNDHÖFER, M. STROPPEL & H. VAN MALDEGHEM, Moufang sets generated by translations in unitals, J. Combin. Des. 30 (2022), 91–104.
- H. VAN MALDEGHEM & M. VICTOOR, On Severi varieties as intersections of a minimum number of quadrics, Cubo 24 (2022), 307–331.
- J. MEULEWAETER & H. VAN MALDEGHEM, Convex subspaces of Lie incidence geometries, Combinatorial Theory 2 (2022), Paper No. 13, 28pp.
- J. PARKINSON & H. VAN MALDEGHEM, Automorphisms and opposition in spherical buildings of exceptional type, I., Canad. J. Math. 74 (2022), 1517–1578.
- T. GRUNDHÖFER, M. STROPPEL & H. VAN MALDEGHEM, Unitals with many involutory translations, Beitr. Algebra Geom. 64 (2023), 287–297.
- S. PETIT & H. VAN MALDEGHEM, Generalized hexagons embedded in metasymplectic spaces, J. Korean Math. Soc. 60 (2023), 907–929.
- H. VAN MALDEGHEM, The geometry of the Freudenthal-Tits Magic Square, in Algebraic Combinatorics and the Monster Group (ed. A.A. Ivanov), London Math. Soc. Lect. Notes Ser. 487 (2023), 289–326.
- A. PASINI & H. VAN MALDEGHEM, Ovoidal maximal subspaces of polar spaces, in Algebraic Combinatorics and the Monster Group (ed. A. A. Ivanov), London Math. Soc. Lect. Notes Ser. 487 (2023), 369–402.
- A. DE SCHEPPER & H. VAN MALDEGHEM, On inclusions of exceptional long root geometries of type E, Innov. Incidence Geom. 20 (2023), 247–293.
- B. MÜHLHERR & H. VAN MALDEGHEM, Moufang quadrangles and affine twin buildings of type C2 (tilde), Innov. Incidence Geom. 20 (2023), 431–441.
- J. PARKINSON & H. VAN MALDEGHEM, Automorphisms and opposition in spherical buildings of exceptional type, II. Moufang hexagons, Innov. Incidence Geom. 20 (2023) 443–470.
- J. ROTH & H. VAN MALDEGHEM, Mixed relations for buildings of type F4, Innov. Incidence Geom. 20 (2023), 543–578.
- A.
DE SCHEPPER, J.
SCHILLEWAERT & H.
VAN MALDEGHEM, A uniform
characterisation of the
varieties of the second
row of the
Freudenthal-Tits magic
square, J.
Combin. Algebra 7 (2023),
227–282.
- P. JANSEN & H. VAN MALDEGHEM, Parapolar spaces of infinite rank, Adv. Stud. Euro-Tbil. Math. J. 16 (2023). 191–203.
- P. JANSEN & H. VAN MALDEGHEM, Imaginary geometries, Mod. Math. Meth. 1 (2023), 43–92.
- J. A. THAS & H. VAN MALDEGHEM, Suzuki-Tits ovoids through the years, Arch. Math. 121 (2023), 511–521.
- J. MEULEWAETER & H. VAN MALDEGHEM, 3-graphs from vector spaces, Lin. Alg. Appl. 690 (2024), 91–111.
- A.
DE SCHEPPER, J.
SCHILLEWAERT, H. VAN
MALDEGHEM & M.
VICTOOR, Constructions
and characterization of
the varieties of the
third row of the
Freudenthal-Tits magic
square, Geom.
Dedicata 218
(2024), Paper No. 20,
57pp.
- A.
DE SCHEPPER, J.
SCHILLEWAERT & H.
VAN MALDEGHEM, On the
generating rank and
embedding rank of the
hexagonic Lie
incidence geometries,
Combinatorica
44
(2024), 355–392
- A.
PASINI & H. VAN
MALDEGHEM, An essay on
Freudenthal-Tits polar
spaces, J. Algebra
656
(2024), 367–393.
- J. PARKINSON & H. VAN MALDEGHEM, Automorphisms and opposition in spherical buildings of classical type, Adv. Geom. 24 (2024), 287–321.
- B. N. COOPERSTEIN & H. VAN MALDEGHEM, Subgeometries isomorphic to residues in exceptional Lie incidence geometries, Bull. Belg. Math. Soc. Simon Stevin 31 (2024). 446–463.
- H. VAN MALDEGHEM, Notes on Cooperstein ovoids in finite geometries of type E6,1, Mathematics 12 (2024), Paper No. 3720, 11pp.
- H. VAN MALDEGHEM, Hyperplanes of Segre geometries, Ars Combin. 160 (2024), 59–71.
- P.
JANSEN & H. VAN
MALDEGHEM, Subgeometries
of (exceptional) Lie
incidence geometries
induced by maximal
root subsystems,
Münster J. Math.
17 (2024),
99–141.
- H. VAN MALDEGHEM, Line spreads that produce projective planes, Mathematics 13 (2025), Paper No. 199, 12pp.
- Y.
NEYT, J. PARKINSON &
H. VAN MALDEGHEM,
Uniclass automorphisms
of spherical buildings,
Geom.
Dedicata 219
(2025), Paper No. 34,
54pp.
- F.
IHRINGER, P. JANSEN,
L. LAMBRECHT, Y. NEYT,
D. RIJPERT, H. VAN
MALDEGHEM & M.
VICTOOR, Local
recognition of the
point graphs of some
Lie incidence
geometries, J. Graph
Theory 109
(2025), 518–524.
- D. MITROVIC, J. SCHILLEWAERT & H. VAN MALDEGHEM, Local recognition of affine rank 3 graphs, Combinatorica 45 (2025), Paper No.55, 27pp.
-
S.
BUSCH & H. VAN
MALDEGHEM, A
characterisation of
lines in finite Lie
incidence geometries of
classical type, Discr.
Math. 349
(2026), Paper No.
114711, 15pp.
-
L.
LAMBRECHT & H. VAN
MALDEGHEM,
Automorphisms and
opposition in
spherical buildings of
exceptional type, III.
Metasymplectic spaces,
To appear in Selecta
Math.
- S.
BUSCH, J. SCHILLEWAERT
& H. VAN MALDEGHEM,
Groups of projectivities
and Levi subgroups in
spherical buildings of
simply laced type, to
appear in J. Group
Theory
- Y.
NEYT & H. VAN
MALDEGHEM, Polar
kangaroos of type E6,
to appear in Quaestiones
Math.
- S.
BUSCH & H. VAN
MALDEGHEM,
Groups of projectivities in
spherical buildings of
non-simply laced type,
submitted manuscript
- J.
PARKINSON & H. VAN
MALDEGHEM, Automorphisms
and opposition in
spherical buildings of
exceptional type, V.
Buildings of type E8, submitted manuscript
- Y.
NEYT, J. PARKINSON &
H. VAN MALDEGHEM,
Automorphisms of Lie
incidence geometries
with spectral gaps,
submitted manuscript
- D.
RIJPERT & H. VAN
MALDEGHEM, Weyl
substructures of
spherical buildings,
submitted manuscript
- P. ABRAMENKO & H. VAN MALDEGHEM, Graphs and incidence geometries from buildings of arbitrary type, in progress
- B. MÜHLHERR & H. VAN MALDEGHEM, Affine twin buildings of type C2 tilde, in progress
- V.
BATENS & H. VAN
MALDEGHEM, Polarities of
exceptional geometries
of type E6,
submitted manuscript
- S. BUSCH & H. VAN MALDEGHEM, Lines and opposition in finite Lie incidence geometries of exceptional type, in progress
- Y. NEYT, J. PARKINSON, H. VAN MALDEGHEM & M. VICTOOR, Automorphisms and opposition in spherical buildings of exceptional type, IV. Buildings of type E7, submitted manuscript
- L.
LAMBRECHT & H. VAN
MALDEGHEM, Subgeometries
isomorphic to residues
in metasymplectic
spaces, submitted
manuscript
- P. JANSEN, J. SCHILLEWAERT & H. VAN MALDEGHEM, Embedded metasymplectic spaces of type F4,4, submitted manuscript
- S.
BUSCH, M. PENGITORE, J.
SCHILLEWAERT & H.
VAN MALDEGHEM, On
Wiegold's conjecture for
the small Ree groups,
submitted manuscript
Books
-
H. VAN MALDEGHEM, Generalized Polygons, Birkhaüser Verlag, Basel, Boston, Berlin, Monographs in Mathematics 93, 1998, 506 pp. ISBN 3-7643-5864-5
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J. A. THAS, K. THAS & H. VAN MALDEGHEM, Translation Generalized Quadrangles, World Scientific Publishing, Hackensack, 2006.
-
A. E. BROUWER & H. VAN MALDEGHEM, Strongly regular graphs, Cambridge University Press, Cambridge, 2022.
- H. VAN MALDEGHEM, Polar Spaces, EMP
Press, Münster
Lectures in Mathematics, 2024.
Here you can find the preprint database of the Incidence Geometry Research Group of our department
Publications in Dutch
- Over de stellingen van Menelaos en Ceva,
Wiskunde en Onderwijs 58 (1989), 155–161 (with L. Van Maldeghem). - Wiskunde is ook Wiskunst,
Wiskunde en Onderwijs 84 (1995), 398–401. - Enkele aspecten van het meetkunde onderwijs,
Wiskunde en Onderwijs 93 (1998), 9–17. - Het natuurlijk getal 25,
Wiskunde en Onderwijs 103 (2000), 296–304. - Meetkunde: Waar komt het vandaan, en Waar gaat het heen?
Wiskunde en Onderwijs 121 (2005), 14–25. - 40 jaar VVWL, 40 problemen (I: 1975–1987),
Wiskunde en Onderwijs 170 (2017), 128–136. - 40 jaar VVWL, 40 problemen (II: 1988–1999),
Wiskunde en Onderwijs 171 (2017), 245–256. - 40 jaar VVWL, 40 problemen (III: 2000–2014),
Wiskunde en Onderwijs 172 (2017), 314–352.
Editorships
Editor-in-Chief of
- Journal of Algebraic Combinatorics
2005–2017 - Algebraic Combinatorics
since 2018 - Bulletin of the Belgian Mathematical Society–Simon Stevin
2001–2012 - Innovations in Incidence Geometry
2005–2021
Editor of
- Advances in Geometry
2000–2023 - Noti di Matematica
since 2021 - Bulletin of the Belgian Mathematical Society–Simon Stevin
since 2001 - Innovations in Incidence Geometry
since 2005
