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 Professors & Scholars @ HGS MathComp
2026 Romberg Visiting Scholar
Prof. Jonas Wallin • Lund University
I am Professor of Statistics at Lund University. My research focuses on stochastic processes, in particularly Gaussian processes defined on compact metric graphs (linear networks), motivated by applications on road and river systems. I study their existence, structural properties, and representation, as well as methods for scalable inference. I also develop non-Gaussian process models constructed via stochastic differential equations driven by Lévy noise, in particular Generalized Laplace and Normal Inverse Gaussian processes. These models allow asymmetric fields and non-symmetric dependence structures while preserving analytical structure and computational tractability. In addition, I work in spatial epidemiology, especially vector-borne diseases, and on regularization methods and large-scale algorithms for high-dimensional regression and graphical models.
Overview Romberg Visiting Professors and Visiting Scholars
HGS MathComp is proud to have welcomed the following Romberg Visiting Professors and Visiting Scholars:
2026 - Prof. Jonas Wallin (Lund University, SE) • Romberg Visiting Scholar
2025 - Prof. Haobin Wang (University of Colorado Denver, US) • Romberg Visiting Professor
2025 - Prof. Daniel Crawford (Virginia Tech, US) • Romberg Visiting Scholar
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