Professor Dio Margetis will be the Distinguished Ordway Visitor and Lecturer by the School of Mathematics at the University of Minnesota, for 2019-20. This special distinction is the result of faculty nomination and a competitive selection process in the School of Mathematics at UMN. During his visit, Dio will deliver a series of lectures on his latest work in mathematical aspects of materials science and mathematical physics. A list of previous Ordway Visitors can be found at: https://math.umn.edu/upcoming-