Hiroshi Iyetomi is a professor of mathematics at Niigata University, focusing on econophysics, network science, and multivariate analysis. He first studied strongly coupled plasma physics as an assistant professor of physics at the University of Tokyo (1984-1993). Afterward, he worked as a researcher for semiconductor processing apparatuses at the Energy Research Laboratory, Hitachi, Ltd. (1993-1994); associate and later full professor of condensed matter and computational physics at Niigata University (1995-2012); and project professor of econophysics at the University of Tokyo (2012-2013). Furthermore, he studied condensed matter physics as a research associate at the Argonne National Laboratory (1987-1989), a visiting associate professor at Louisiana State University (1996, 2001), and a visiting fellow at Delft University of Technology (2002). He received his Ph.D. in Physics from the University of Tokyo.