Romberg Program
With its founding in 2007, HGS MathComp implemented the distinguished Romberg Program. With this program, the graduate school invites leading researchers working in a relevant field for a stay of typically two months. The guests invited via the Romberg Program participate in joint research and make substantial contributions to the training program by complementing the teaching done by the members or by disseminating their latest research results at the school.
Appointments are possible in the categories Romberg Visiting Professor and Romberg Visiting Scholar. Candidates for the Romberg Program are nominated by HGS MathComp Principal Investigators. This is done via annual calls for proposals. Applications are evaluated by the HGS MathComp Executive Committee and the IWR Executive Committee. Researchers interested in the Romberg Program are encouraged to contact HGS MathComp members to discuss potential collaborations to be considered for future calls.
Current Romberg Scholars @ HGS MathComp
2025 Romberg Visiting Scholar
Prof. Suhasini Subba Rao • Texas A&M University
Suhasini Subba Rao is a professor of statistics at Texas A&M University. She has previously been a lecturer at the University of Bristol and a postdoctoral fellow at the Institute of Applied Mathematics, University of Heidelberg.
Her research broadly lies in time series analysis. Specifically, she has worked in connecting time and frequency domain methods in time series, developed methods for the detection of nonstationary behaviour and characterisations of nonstationarity. Recently, her research focus has been in the development of graphical models for nonstationary, multivariate time series and non-Gaussian time series.
2024 Romberg Visiting Scholar
Prof. Georg Stadler • New York University
Georg Stadler is a Professor of Mathematics at New York University's Courant Institute of Mathematical Sciences. Before joining NYU in 2014, he was a member of UT Austin's Oden Institute for Computational Engineering and Sciences, initially as a postdoc and later as research scientist and lecturer. He obtained his doctorate from the University of Graz in Austria.
His research interests are broadly in uncertainty quantification, PDE-constrained optimization under uncertainty, and parallel algorithms and PDE solvers. This research is commonly driven by real-world challenges in climate science (land and sea ice), plasmas (magnetic confinement for fusion), or geophysics (mantle flow and plate tectonics, tsunamis). Recently, he has worked on quantifying tail probabilities corresponding to important but rare events, on probabilistic constraints in optimization, and on inferring constitutive relations in fluid flows from data.
2024 Romberg Visiting Professor
Prof. Kirk M. Soodhalter • The University of Dublin
Kirk M. Soodhalter is the Ussher Assistant Professor in Numerical Analysis in the School of Mathematics at Trinity College Dublin (2017-present). From 2016-2017, he held a position as a Research Scientist in the Industrial Transfer Group at the Johann Radon Institute for Computational and Applied Mathematics (RICAM) and was also employed as a consultant Mathematician with the Math Consult Group, both in Linz, Austria. As a consultant, he worked on simulation problems concerning transformer production for Siemens Austria. From 2012-2016, he held a position of Universitätsassistent at the Industrial Mathematics Institute at Johannes Kepler University, in Linz. Broadly speaking, his work has been in numerical analysis, numerical and applied linear algebra, and scientific computing. His work often concerns the development and analysis of iterative methods to treat large-scale linear and nonlinear problems as well as inverse problems, often using Krylov subspace methods. Much of his work has focused on breaking methods down to understand how they work at a fundamental level which then leads to improvements in design and implementation.
Overview Romberg Visiting Professors and Visiting Scholars
HGS MathComp is proud to have welcomed the following Romberg Visiting Professors and Visiting Scholars:
2025 - Prof. Haobin Wang (University of Colorado Denver, US) • Romberg Visiting Professor
2025 - Prof. Suhasini Subba Rao (Texas A&M University, US) • Romberg Visiting Scholar
2024 - Prof. Georg Stadler (New York University, US) • Romberg Visiting Scholar
2024 - Prof. Kirk M. Soodhalter (The University of Dublin, IE) • Romberg Visiting Professor
2023 - Prof. Antonio Capella Kort (National Autonomous University of Mexico, MX) • Romberg Visiting Professor
2023 - Dr. Tiangang Cui (University of Sydney, AU) • Romberg Visiting Scholar
2022 - Prof. Heather J. Kulik (Massachusetts Institute of Technology, US) • Romberg Visiting Scholar
2022 - Prof. Leonid Berlyand (Pennsylvania State University, US) • Romberg Visiting Professor
2021 - Prof. Francesca Bonizzoni (Augsburg University, DE) • Romberg Visiting Scholar
2019 - Prof. David J. Silvester (University of Manchester, GB) • Romberg Visiting Professor
2018 - Prof. Colin Fox (University of Otago, NZ) • Romberg Visiting Professor
2017 - Prof. Huan-Xiang Zhou (University of Illinois at Chicago, US) • Romberg Visiting Professor
2016 - Prof. Robert Scheichl (University of Bath, GB) • Romberg Visiting Professor
2015 - Prof. Michael Unser (Ecole polytechnique fédérale de Lausanne, CH) • Romberg Visiting Professor
2014 - Prof. Donald Richards (Pennsylvania State University, US) • Romberg Visiting Professor
2013 - Prof. Richard W. Longman (Columbia University, US) • Romberg Visiting Professor
2012 - Prof. Mitchell Luskin (University of Minnesota, US) • Romberg Visiting Professor
2011 - Prof. Andro Mikelic (University of Lyon, FR) • Romberg Visiting Professor
2010 - Prof. George C. Papanicolaou (Stanford University, US) • Romberg Visiting Professor
2008 - Prof. Hoang Xuan Phu (Vietnam Academy of Science and Technology, VN) • Romberg Visiting Professor