08+09S | 09W | 10S | 10W | 11S | 11W | 12S | 12W | 13S | 13W | 14S | 14W | 15S | 15W | 16S | 16W | 17S | 17W | 18S | 18W | 19S
Summer Term 2019, Doctoral School Events | |
2019-03-22 | Doctoral School Seminar (Inst. Mathematik, Heinrichstr. 36, 15:00—16:00, KFU) |
Sandra Marschke (KFU, advisor W. Ring): Modeling, identification, and optimization of violin bridges [show abstract] | |
Josef Strini (TU, advisor S. Thonhauser): On a dividend problem with random funding [show abstract] | |
2019-05-10 | Doctoral School Seminar (Seminarraum 2 des Instituts für Geometrie, Kopernikusgasse 24, 9:30—12:00, TU) |
Leonardo Alese (TU, advisor J. Wallner): Closing curves by rearranging arcs | |
Abstract: Closed curves are mathematical objects that have been studied for a long time. In spite of this some natural problems have not yet been completely settled and interesting questions keep on coming up. In this seminar we will see how, under surprisingly weak assumptions, one can always split a C^{1} planar curve into three arcs and rearrange them (matching tangent directions) to get a closed curve. The proof involves only tools from elementary topology | |
Jana Fuchsberger (KFU, advisor G. Haase): Simulating a Heart Valve using a Varying Permeability Approach | |
Abstract: Models of total heart function include computational fluid dynamics models of blood flow. The effect of heart valves upon flow patterns can be taken into account by a fictitious domain approach in combination with the Navier-Stokes-Brinkman equations. The motion of the valve is represented by means of a spatio-temporal varying permeability function while the underlying mesh remains unchanged. We present first proof-of-concept simulations of blood flow to demonstrate feasibility. | |
Junseok Oh (KFU, advisor A. Geroldinger): On minimal product-one sequences of maximal length over dihedral and dicyclic groups. | |
Abstract: Let G be a finite group. By a sequence over G we mean a finite unordered sequence of terms from G with repetition allowed. We say that it is a product-one sequence if its terms can be ordered such that their product equals the identity element of G The large Davenport constant is the maximal length of a minimal product-one sequence, that is a product-one sequence which cannot be factored into two non-trivial product-one subsequences. In this talk, we provide explicit characterizations of all minimal product-one sequences of maximal length over Dihedral and Dicyclic groups. | |
2019-06-14 | Doctoral School Seminar (Seminarraum 2 des Instituts für Geometrie, Kopernikusgasse 24, 9:30—12:00, TU) |
Irene Parada (TU, advisor O. Aichholzer): |