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Summer Term 2017, Doctoral School Events
2017-03-24 Doctoral School Seminar (Seminarraum 2 des Instituts für Geometrie, Kopernikusgasse 24, 10:30—13:00, TU)
Hannah Schreiber (TU, advisor M. Kerber): Barcodes of Towers [show abstract]
Arnur Nigmetov (TU, advisor M. Kerber): Geometry helps compare persistence diagrams [show abstract]
Svenja Hüning (TU, advisor J. Wallner): Convergence analysis of subdivision schemes in Riemannian geometry

Abstract: Subdivision schemes are algorithms producing limit curves by refining discrete sets of points. We are interested in the convergence analysis of refinement rules in Riemannian geometry. So far, convergence results could be proven for certain classes of refinement rules and/or special kinds of Riemannian manifolds. Examples are interpolatory subdivision schemes and schemes with only positive mask coefficients.
In this talk we first show how to extend linear subdivision schemes to manifold valued data. For that purpose, we study the existence and uniqueness of the Riemannian center of mass on Cartan-Hadamard manifolds. In the second part we extend a known convergence result to subdivision schemes without sign restriction. [hide abstract]

2017-04-28 Doctoral School Seminar (Seminarraum 2 des Instituts für Geometrie, Kopernikusgasse 24, 10:30—13:00, TU)
Niclas Technau (TU, advisor R. Tichy): A short Introduction to Loewner Theory [show abstract]
Eva Siegmann (KFU, advisor G. Haase): Simulating convex polyhedral shaped particles with DEM [show abstract]
Judith Kloas (TU, advisor W. Woess): The distinguishing number of trees and subcubic graphs [show abstract]
Doris Schadler (TU, advisor E. Stadlober): A regression approach to fault detection at engine test beds [show abstract]
2017-06-02 Doctoral School Seminar (Inst. Mathematik, Heinrichstr. 36, SR 11.34, 14:00—16:30, KFU)
Kwok Chi Chim (TU, advisor R. Tichy): A bound for linear forms in two p-adic logarithms [show abstract]
Gundelinde Wiegel (TU, advisor W. Woess): The distinguishing number of vertex transitive cubic graphs [show abstract]
Lukas Richter (TU, advisor E. Stadlober): Statistical modelling in public health: segmented regression and methods to model low count data [show abstract]
Martin Kanitsar (KFU, advisor M. Hintermüller): Shape and topology optimization in fluid dynamics [show abstract]