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- 2017
- A characterization of a class of hyperplanes of DW(2n-1, F) (
- 2016
- Regular partitions of half-spin geometries (
- A note on characterizing Hermitian curves via Baer sublines (
- On semi-finite hexagons of order (2, t) containing a subhexagon (
- A new near octagon and the Suzuki tower (
- Polarized non-abelian representations of slim near-polar spaces (
- Hyperplanes of Hermitian dual polar spaces of rank 3 containing a quad (
- Projective embeddings of dual polar spaces of mixed type (
- Two-character sets as subsets of parabolic quadrics (
- Universal and homogeneous embeddings of dual polar spaces of rank 3 defined over quadratic alternative division algebras (
- 2015
- On hyperovals of polar Grassmannians (
- Every generalized quadrangle of order 5 having a regular point is symplectic (
- An alternative approach to the classification of the regular near hexagons with parameters (s,t,t(2)) = (2,11,1) (
- The uniqueness of a certain generalized octagon of order (2,4) (
- On Q-polynomial regular near 2d-gons (
- A 14-dimensional module for the symplectic group: orbits on vectors (
- 2014
- On hyperbolic sets of maxes in dual polar spaces (
- The use of valuations for classifying point-line geometries (
- Non-embeddable polar spaces (
- Association schemes on the sets of lines of regular near hexagons (
- Isometric embeddings between the near polygons Hn and Gn (
- 2013
- The classification of the trivectors of a 6-dimensional symplectic space: summary, consequences and connections (
- Polygonal valuations (
- The pseudo-hyperplanes and homogeneous pseudo-embeddings of the generalized quadrangles of order (3, t) (
- Projective embeddings of dual polar spaces arising from a class of alternative division rings (
- On the trivectors of a 6-dimensional symplectic vector space, IV (
- Hyperplanes of DW(5,K) containing a quad (
- Pseudo-embeddings and pseudo-hyperplanes (
- Non-classical hyperplanes of DW(5, q) (
- Isometric embeddings of the near polygons Hn and Gn into dual polar spaces (
- On the trivectors of a 6-dimensional symplectic vector space, III (
- Inequalities for regular near polygons, with applications to m-ovoids (
- Spin-embeddings, two-intersection sets and two-weight codes (
- 2012
- Dual embeddings of dense near polygons (
- On the trivectors of a 6-dimensional symplectic vector space, II (
- On sets of odd type of PG(n, 4) and the universal embedding of the dual polar space DH(2n-1, 4) (
- The hyperplanes of the glued near hexagon Q(5,2) ⊗ Q(5,2) (
- A decomposition of the universal embedding space for the near polygon ℍn (
- The pseudo-hyperplanes and homogeneous pseudo-embeddings of AG(n, 4) and PG(n, 4) (
- Intriguing sets of points of Q(2n, 2)\Q⁺(2n-1, 2) (
- On the universal embedding of the near hexagon related to the extended ternary Golay code (
- 2011
- Dense near octagons with four points on each line, III (
- Hyperplanes and projective embeddings of dual polar spaces (
- On extensions of hyperplanes of dual polar spaces (
- Non-abelian representations of the slim dense near hexagons on 81 and 243 points (
- A note on the spin-embedding of the dual polar space DQ⁻(2n+1,K) (
- On polyvectors of vector spaces and hyperplanes of projective Grassmannians (
- Canonical equations for nonsingular quadrics and Hermitian varieties of Witt index at least (n-1)/2 of PG(n,K), n odd (
- The hyperplanes of finite symplectic dual polar spaces which arise from projective embeddings (
- The valuations of the near 2n-gon In (
- On the trivectors of a 6-dimensional symplectic vector space (
- 2010
- The nonexistence of regular near octagons with parameters (s, t, t(2), t(3)) = (2,24,0,8) (
- Intriguing sets of vertices of regular graphs (
- The hyperplanes of the U (4)(3) near hexagon (
- On the Grassmann modules for the symplectic groups (
- On hyperovals of polar spaces (
- Some subspaces of the projective space PG(Lambda(K) V) related to regular spreads of PG(V) (
- On the Grassmann modules for the unitary groups (
- Regular partitions of dual polar spaces (
- On geometric SDPS-sets of elliptic dual polar spaces (
- A note on near hexagons with lines of size 3 (
- The valuations of the near octagon $G_4$ (
- A property of isometric mappings between dual polar spaces of type DQ(2n,K) (
- Direct constructions of hyperplanes of dual polar spaces arising from embeddings (
- Locally subquadrangular hyperplanes in symplectic and Hermitian dual polar spaces (
- The hyperplanes of DQ(-)(7,K) arising from embedding (
- 2009
- Hyperplanes of embeddable Grassmannians arise from embeddings: a short proof (
- On a class of hyperplanes of the symplectic and Hermitian dual polar spaces. (
- Points and hyperplanes of the universal embedding space of the dual polar space DW(5,q), q odd (
- The hyperplanes of $DW(5,2^h)$ which arise from embedding. (
- The uniqueness of the SDPS-set of the symplectic dual polar space $DW(4n-1,q)$, $n \geq 2$ (
- On isometric full embeddings of symplectic dual polar spaces into Hermitian dual polar spaces. (
- On symplectic polar spaces over non-perfect fields of characteristic 2 (
- Polarized and homogeneous embeddings of dual polar spaces (
- Some subspaces of the kth exterior power of a symplectic vector space (
- Near hexagons with two possible orders for the quads (
- On the nucleus of the Grassmann embedding of the symplectic dual polar space $DSp(2n,F)$. (
- An alternative definition of the notion valuation in the theory of near polygons. (
- Coordinatization structures for generalized quadrangles and glued near hexagons. (
- On the simple connectedness of hyperplane complements in dual polar spaces (
- On the intersection of distance-$j$-ovoids and subpolygons in generalized polygons (
- Hyperplanes of DW(5,K) with K a perfect field of characteristic 2 (
- The valuations of the near polygon G(n) (
- 2008
- The structure of the spin-embeddings of dual polar spaces and related geometries (
- The hyperplanes of the near hexagon on the 2-factors of the complete graph K-8 (
- Two classes of hyperplanes of dual polar spaces without subquadrangular quads (
- A coordinatization structure for generalized quadrangles with a regular spread (
- A characterization of m-ovoids and i-tight sets of polar spaces (
- The uniqueness of the generalized quadrangle of order 5 with an axis (
- A recursive construction for the dual polar spaces DQ(2n, 2) (
- The structure of full polarized embeddings of symplectic and Hermitian dual polar spaces (
- The combinatorial properties of the hyperplanes of DW(5, q) arising from embedding (
- Isometric full embeddings of DW(2n-1, q) into DH(2n-1, q(2)) (
- Two new classes of hyperplanes of the dual polar space DH (2n-1, 4) not arising from the Grassmann embedding (
- On the Grassmann-embeddings of the hermitian dual polar spaces (
- The hyperplanes of DH(5, q(2)) (
- 2007
- A decomposition of the natural embedding spaces for the symplectic dual polar spaces (
- Tight sets of points in the half-spin geometry related to Q(+)(9, q) (
- The hyperplanes of DQ(2n, K) and DQ(-) (2n+1, q) which arise from their spin-embeddings (
- Some notes on generalized quadrangles with a span of regular points (
- Minimal underlying division rings of sets of points of a projective space (
- On the hyperplanes of the half-spin geometries and the dual polar spaces DQ(2n, K) (
- On small and large hyperplanes of DW(5,q) (
- Generating symplectic and Hermitian dual polar spaces over arbitrary fields nonisomorphic to F-2 (
- Dense near octagons with four points on each line, I (
- The exceptional hyperplanes of D H (5,4) (
- Minimal full polarized embeddings of dual polar spaces (
- Valuations of glued near hexagons (
- Generating rank of the U-4(3) near hexagon (
- A general theory for dense near polygons with a nice chain of subpolygons (
- The valuations of the near octagon H-4 (
- Hyperplanes of DW(2n-1,q), q not equal 2, without ovoidal quads (
- Minimal scattered sets and polarized embeddings of dual polar spaces (
- Dense near octagons with four points on each line, II (
- The universal embedding of the near polygon G(n) (
- A characterization of the SDPS-hyperplanes of dual polar spaces (
- The classification of the slim dense near octagons (
- 2006
- The hyperplanes of DW(5,q) with no ovoidal quad (
- Near polygons (
- Locally singular hyperplanes in thick dual polar spaces of rank 4 (
- Near polygons having a big sub near polygon isomorphic to H-D(2n-1,4) (
- The Valuations of the near hexagons related to the Witt designs S(5,6,12) and S(5,8,24) (
- The valuations of the near octagon II4 (
- The simple connectedness of hyperplane complements in thick dual polar spaces of rank at least 4 (
- Compatible spreads of symmetry in near polygons (
- The completion of the classification of the regular near octagons with thick quads (
- Generalized quadrangles of order s with a hyperbolic line consisting of regular points (
- Bounding the size of near hexagons with lines of size 3 (
- Dense near polygons with hexes of type H-D (5, q(2)), Q(5, q)xL(q+1) or Q(5, q) circle times Q(5, q) (
- A note on symplectic polar spaces over non-perfect fields of characteristic 2 (
- Distance-j-ovoids in regular near 2d-gons (
- The distance-2-sets of the slim dense near hexagons (
- Dense near polygons with two types of quads and three types of hexes (
- 2005
- Valuations and hyperplanes of dual polar spaces (
- Slim near polygons (
- On a problem regarding the n-sectors of a triangle (
- Valuations of near polygons (
- 2004
- On a nice property of the sequence x_{n+2}=x_{n+1}^3 / (x_n^2 - 2x_{n+1}^2) (
- Near polygons having a big sub near polygon isomorphic to G(n) (
- Decomposable near polygons (
- Near polygons with a nice chain of sub-near polygons (
- 2003
- Two conjectures regarding dense near polygons with three points on each line (
- Near polygons having a big sub near polygon isomorphic to H_n (
- On the finiteness of near polygons with 3 points on every line (
- Welke rationale getallen liggen tussen twee gegeven rationale getallen? (
- New near polygons from Hermitian varieties (
- A thin near hexagon with 50 points (
- Characterizations of near hexagons by means of one local space (
- A new geometrical construction of the near hexagon with parameters (s,t_2,T_2)=(2,5,{1,2}) (
- 2002
- Generalized quadrangles with a spread of symmetry and near polygons. (
- Generalized quadrangles with a unique grid through every two intersecting lines. (
- On the uniqueness of near polygons with three points on every line. (
- The glueing of near polygons. (
- 2001
- Glued near polygons. (
- Recent results on near polygons: a survey (
- Near hexagons with four points on a line (
- 2000
- On near polygons and the Coxeter cap in PG(5, 3). (
- On near hexagons and spreads of generalized quadrangles. (
- On the number of nonisomorphic glued near hexagons. (
- 1999
- Generalized quadrangles with a spread of symmetry. (
- Near polygons from partial linear spaces (
- Constructions and characterizations of near polygons (
- On linear representations of near hexagons (