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7 papers · 1 filter
Covers of Point-Hyperplane Graphs
Arjeh M. Cohen, E. J. Postma
We construct a cover of the non-incident point-hyperplane graph of projective dimension 3 for fields of characteristic 2. If the cardinality of the field is larger than 2, we obtai…
BMW algebras of simply laced type
A. M. Cohen, D. A. H. Gijsbers, D. B. Wales
It is known that the recently discovered representations of the Artin groups of type A_n, the braid groups, can be constructed via BMW algebras. We introduce similar algebras of ty…
Imaging of the [Mn2+(3d5) + hole] complex in GaAs by Cross-sectional Scanning Tunneling Microscopy
A. M. Yakunin, A. Yu. Silov, P. M. Koenraad +3
We present results on the direct spatial mapping of the wave-function of a hole bound to a Mn acceptor in GaAs. To investigate individual Mn dopants at the atomic scale in both ion…
Combinatorial problems in finite geometry and lacunary polynomials
Aart Blokhuis
We describe some combinatorial problems in finite projective planes and indicate how Rédei's theory of lacunary polynomials can be applied to them.
Surface-active dust in a plasma sheath
A. M. Ignatov, P. P. J. M. Schram, S. A. Trigger
The inhomogeneity of the plasma pressure near a conducting electrode is a cause for introducing the surface tension associated with the plasma-electrode interface. We evaluate the…
Random walks on FKG-horizontally oriented lattices
Nadine Guillotin-Plantard, Arnaud Le Ny
We study the asymptotic behavior of the simple random walk on oriented version of . The considered latticesare not directed on the vertical axis but unidirectional on…