Die Fachzeitschrift "Mitteilungen der Österreichischen Geographischen Gesellschaft" (früher k.k. Gesellschaft in Wien") • ist das wichtigste regelmäßig erscheinende Organ "Österreichischen Gesellschaft", erscheint seit 1857 und die älteste noch existierende geographischen Inhaltes im deutschen Sprachraum, vermittelt neue Erkenntnisse aus allen Bereichen Geographie, Kartographie verwandt...

We describe a canonical covariant approach to the quantization of the Green-Schwarz superstring. The approach is first applied to the canonical covariant quantization of the Brink and Schwarz superparticle. The Kallosh action is obtained in this case, with the correct BRST cohomology.

Extrapolation methods can be a very effective technique used for accelerating the convergence of vector sequences. In this paper, these methods are used to accelerate the convergence of Schwarz iterative methods for nonlinear problems. Some convergence analysis is presented, and it is shown numerically that certain extrapolation methods can indeed be very effective in accelerating the convergen...

We construct Schwarz domain decomposition preconditioners for plane wave discontinuous Galerkin methods for Helmholtz boundary value problems. In particular, we consider additive and multiplicative non-overlapping Schwarz methods. Numerical tests show good performance of these preconditioners when solving the linear system of equations with GMRES.

In this paper we take a refreshing look at a Cauchy–Schwarz type inner product inequalities. We also provide a Cauchy–Schwarz based proof and a refinement of Buzano’s inequality in inner product spaces. Some elementary applications such as trace inequalities for unitary matrices and discrete or integral inequalities are given. 2013 Elsevier Inc. All rights reserved.