Piotr Zwiernik

Statistics@UPF Department of Economics and Business Universitat Pompeu Fabra BSE Data Science Center Contact: Universitat Pompeu Fabra Department of Economics and Business Ramon Trias Fargas, 25-27 08005 Barcelona Spain Office: 20.202 E-mail: piotr.zwiernik@upf.edu

Research interests: graphical models, covariance matrix estimation, convex analysis, tensors, algebraic and combinatorial methods in statistics.

Editorial responsibilities: JRSS-B, Biometrika, Scandinavian Journal of Statistics, Algebraic Statistics.

Highlights: Starting from July 2025 you can find me in Barcelona. I am looking for students with strong math background interested in doing PhD at UPF or at the Institute of Mathematics of UPC. GOLAZO R package for a general assymetric regularization of the log-likelihood in Gaussian graphical models. To install, just call in R: devtools::install_github("pzwiernik/golazo")

Math to the people (four axioms of Federico Ardila): Axiom 1. Mathematical potential is distributed equally among different groups, irrespective of geographic, demographic, and economic boundaries. Axiom 2. Everyone can have joyful, meaningful, and empowering mathematical experiences. Axiom 3. Mathematics is a powerful, malleable tool that can be shaped and used differently by various communities to serve their needs. Axiom 4. Every student deserves to be treated with dignity and respect.

I am on leave from: Department of Statistical Sciences, Department of Mathematics, University of Toronto