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17 papers · 1 filter
Quadrangles embedded in metasymplectic spaces
Koen Struyve
During the final steps in the classification of the Moufang quadrangles by Jacques Tits and Richard Weiss a new class of Moufang quadrangles unexpectedly turned up. Subsequently Be…
Moufang quadrangles of mixed type
Koen Struyve, Hendrik Van Maldeghem
In this paper, we present some geometric characterizations of the Moufang quadrangles of mixed type, i.e., the Moufang quadrangles all the points and lines of which are regular. Ro…
Variational determination of the second-order density matrix for the isoelectronic series of beryllium, neon and silicon
Brecht Verstichel, Helen van Aggelen, Dimitri Van Neck +2
The isoelectronic series of Be, Ne and Si are investigated using a variational determination of the second-order density matrix. A semidefinite program was developed that exploits…
On the Number of Membranes in Unary P Systems
Rudolf Freund, Andreas Klein, Martin Kutrib
We consider P systems with a linear membrane structure working on objects over a unary alphabet using sets of rules resembling homomorphisms. Such a restricted variant of P systems…
Exclusive rho-0 electroproduction on transversely polarized protons
The HERMES Collaboration, A. Airapetian
The exclusive electroproduction of rho-0 mesons was studied with the HERMES spectrometer at the DESY laboratory by scattering 27.6 GeV positron and electron beams off a transversel…
A renormalization group invariant scalar glueball operator in the (Refined) Gribov-Zwanziger framework
David Dudal, Silvio Paolo Sorella, Nele Vandersickel +1
This paper presents a complete algebraic analysis of the renormalizability of the operator in the Gribov-Zwanziger (GZ) formalism as well as in the Refined Gribov-…