DISSERTATION JKU LINZ

The role of interpersonal influence among the elderly in dealing with information and communication technologies. From traditional approaches to computer-adaptive and web-based tests. Klaus Priller The role of interpersonal influence among the elderly in dealing with information and communication technologies Dipl. We prove rigorous bounds for the condition number of the preconditioned FETI system that depend only on the coefficient variation in the vicinity of the subdomain interfaces. Our results are confirmed in numerical experiments.

The gradient fields of higher-order H 1 -conforming shape functions are H curl -conforming and can be chosen explicitly as shape functions for H curl. PhD thesis as PDF file 1. First, we consider the case of unbounded domains, where one subdomain corresponds to an exterior problem, while the other subdomains are bounded. We provide explicit condition number bounds that depend on a few geometric parameters, and which are quasi-optimal in special cases. A challenging topic in computational electromagnetics is the Maxwell eigenvalue problem. The global solution is then constructed iteratively from the repeated solution of local problems. Our results are confirmed in numerical experiments.

NUMA: Finished PhD Theses – Dipl.-Ing. Clemens Pechstein

Behaviour, Risk Taking and Personality Asc. Furthermore, the bound is independent of jumps in the diffusion coefficient across subdomain interfaces. Klaus Priller The role of interpersonal influence among the elderly in dealing with information and communication technologies Dipl. The global solution is then constructed iteratively from the repeated solution of local problems. Our results are again confirmed in numerical experiments. Numerical examples illustrate the robustness and performance of the method.

Our results are confirmed in numerical experiments. Due to the local exact sequence property this is jlu satisfied for simple splitting strategies. PhD thesis as Dissertatuon file 2.

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dissertation jku linz

Finally, we consider nonlinear stationary magnetic field problems in two dimensions, as an important application of our preceding analysis.

The gradient fields of higher-order H 1 -conforming shape functions are H curl -conforming and can be chosen explicitly as shape functions for H curl. Prospective doctoral disserration should send their applications to Univ.

Bernad Batinic including an explanation of the topic of interest as well as a short CV including a list of any publications and conference contributions. We prove rigorous bounds for the condition number of the preconditioned FETI system that depend only on the coefficient variation in the vicinity of the subdomain interfaces.

Johannes Kepler University Linz (Linz/Austria) – JKU goes Gender – prize for dissertation

disssertation Wearable Tracking Technology Mag. For its solution we use the subspace version of the locally optimal preconditioned gradient method. Linzz the desired eigenfunctions belong to the orthogonal complement of the gradient functions, we have to perform an orthogonal projection in each iteration step.

Second, we consider elliptic equations with highly heterogeneous coefficient distributions. Robust Schwarz-type methods for Maxwell’s equations rely on a FE-space splitting, which also has to provide a correct splitting of the kernel of the curl-operator.

Dissertations | AOM – JKU Linz

Ulrich Langer External Referee: Current dissertations Author Working title Mag. Tanja Jardin Computer-aided cooperative learning We also demonstrate that FETI preconditioners can lead to robust behavior even for certain coefficient distributions that are highly varying in the vicinity of the subdomain interfaces.

An analogous principle is used for the construction of H div -conforming basis functions. The main difficulty in the construction of efficient and parameter-robust preconditioners for electromagnetic problems is indicated by the different scaling of solenoidal and irrotational fields in the curl-curl problem.

From traditional approaches to computer-adaptive and web-based tests. The fact that this exterior domain can touch arbitrarily many interior subdomains and that the diameter of its boundary is larger than those of the interior subdomains leads to special difficulties in the analysis. For details, please refer to the curriculum of the dissertatiion doctoral program as the online course cataloge KUSSS.

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Timo Gnambs Toward an assessment of generalized opinion leadership: The hp -version of FEM combines local mesh refinement h and local increase of the polynomial order of the diswertation space p. We provide explicit condition number bounds that depend on a few geometric parameters, and which are quasi-optimal in special cases. Finite and boundary element discretizations j,u elliptic partial differential equations result in large linear systems of algebraic equations.

Leszek DemkowiczUniversity of Texas at Austin.

dissertation jku linz

To be more precise, if the coefficient varies only moderately in a layer near the boundary of each subdomain, the method is proved to be robust with respect disserrtation arbitrary variation in the interior of each subdomain and with respect to coefficient jumps across subdomain interfaces. The role of interpersonal influence among the elderly in dealing with information and communication technologies.

Considering dissetration problems involving highly singular eigensolutions, we demonstrate the performance of the constructed preconditioners and the eigenvalue solver in combination with hp -discretization on geometrically refined, anisotropic meshes. A challenging topic in computational electromagnetics is the Maxwell eigenvalue problem.