Results 31 to 40 of about 773,050 (248)
Small Extended Generalized Quadrangles
European Journal of Combinatorics, 1990 An extended generalized quadrangle (EGQ) is a connected point-block incidence structure \({\mathcal G}\) with the property that for any point P the points collinear with P (and different from P) and the blocks incident with P form a generalized quadrangle known as the (point) residue at P.
Peter J. Cameron, P. H. Fisher
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Fall Prong quadrangle, Kimble, Gillespie and Mason Counties, Texas [PDF]
, 1956 To obtain a print version of this publication visit: https://store.beg.utexas.edu/ and search for: GQ0019. 1 fold-out plate with text and map : Geologic Map of the Fall Prong Quadrangle, Kimble, Gillespie, and Mason Counties, Texas, 1956Fall Prong ...
Barnes, Virgil E. (Virgil Everett), 1903-1998
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Quantum Walks on Generalized Quadrangles
The Electronic Journal of Combinatorics, 2017 We study the transition matrix of a quantum walk on strongly regular graphs. It is proposed by Emms, Hancock, Severini and Wilson in 2006, that the spectrum of $S^+(U^3)$, a matrix based on the amplitudes of walks in the quantum walk, distinguishes strongly regular graphs. We probabilistically compute the spectrum of the line intersection graphs of two
Chris D. Godsil +2 more
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Wendel Quadrangle, Gillespie, Kerr, and Kimble Counties, Texas [PDF]
, 1954 To obtain a print version of this publication visit: https://store.beg.utexas.edu/ and search for: GQ0015. 1 fold-out plate with text and map : Geologic Map of the Wendel Quadrangle, Kimble, Kerr, and Gillespie Counties, TexasWendel quadrangle is ...
Barnes, Virgil E. (Virgil Everett), 1903-1998
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Cain City Quadrangle, Gillespie and Kendall Counties, Texas [PDF]
, 1952 To obtain a print version of this publication visit: https://store.beg.utexas.edu/ and search for: GQ0013. 1 fold-out plate with text and map : Geologic Map of the Cain City Quadrangle, Gillespie and Kendall Counties, TexasCain City quadrangle is south ...
Barnes, Virgil E. (Virgil Everett), 1903-1998
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North Grape Creek Quadrangle, Blanco and Gillespie Counties, Texas [PDF]
, 1952 To obtain a print version of this publication visit: https://store.beg.utexas.edu/ and search for: GQ0010. 1 fold-out plate with text and map : Geologic Map of the North Grape Creek Quadrangle, Blanco and Gillespie Counties, TexasNorth Grape Creek ...
Barnes, Virgil E. (Virgil Everett), 1903-1998
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Generalized quadrangles and regularity
Discrete Mathematics, 2005 The point \(X\) of a generalized quadrangle (GQ) of order \((s,t)\) is regular if \(|(\{X,Y\}^\bot)^\bot|=t+1\) for every point \(Y\) not collinear with \(X\). Let the generalized quadrangle \(\mathcal S\) of order \((s,t)\) contain a regular point \(X\). Then the incidence structure \({\mathcal N}_X\) with pointset \(X^\bot-\{X\}\), with lineset \(\{(\
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A complex polytope as generalized quadrangle
, 1983 SynopsisWe show that the classical generalized quadrangle W(3) is modelled by a complex polytope, and give an explicit embedding in PG(3, 3)
S. G. Hoggar
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On ovoids of the generalized quadrangle H(3, q(2))
, 2021 We construct examples and families of locally Hermitian ovoids of the generalized quadrangle H(3, q(2)). We also obtain a computer classification of all locally Hermitian ovoids of H(3, q(2)) for q
De Bruyn, Bart +1 more
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Extending generalized quadrangles
Journal of Combinatorial Theory, Series A, 1989 Let P be any point of a finite incidence structure S and denote by \(S_ P\) the incidence structure which consists of all points of S joined to P and all lines of S containing P. S is called an extended generalized quadrangle of order (s,t) if S is connected and \(S_ P\) is a generalized quadrangle of order (s,t) for all points P of S.
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