activity
20162023
most citedThe Helmholtz equation with uncertainties in the wavenumber

4 citations · 7 across the 10 of their papers we have counts for

collaborators
Showing 2017Show all

5 papers · 1 filter

math.NA2017

Stability preservation in Galerkin-type projection-based model order reduction

Roland Pulch

We consider linear dynamical systems consisting of ordinary differential equations with high dimensionality. The aim of model order reduction is to construct an approximating syste…

math.NA2017

Balanced truncation for model order reduction of linear dynamical systems with quadratic outputs

Roland Pulch, Akil Narayan

We investigate model order reduction (MOR) for linear dynamical systems, where a quadratic output is defined as a quantity of interest. The system can be transformed into a linear…

math.NA2017

Stability preservation in stochastic Galerkin projections of dynamical systems

Roland Pulch, Florian Augustin

In uncertainty quantification, critical parameters of mathematical models are substituted by random variables. We consider dynamical systems composed of ordinary differential equat…

math.NA2017

Index-analysis for a method of lines discretising multirate partial differential algebraic equations

Roland Pulch, Diana Estevez Schwarz, Rene Lamour

In radio frequency applications, electric circuits generate signals, which are amplitude modulated and/or frequency modulated. A mathematical modelling yields typically systems of…

math.NA2017

Model order reduction for random nonlinear dynamical systems and low-dimensional representations for their quantities of interest

Roland Pulch

We examine nonlinear dynamical systems of ordinary differential equations or differential algebraic equations. In an uncertainty quantification, physical parameters are replaced by…