Dr. Jeffrey Lagarias

Biography

Jeffrey Lagarias is the Harold Mead Stark Distinguished University Professor in the Department of Mathematics at the University of Michigan, where he has been actively involved in research in Number Theory, Geometry, and Topology. He completed his Ph.D. at the Massachusetts Institute of Technology in 1974. His research interests are broad, covering both pure and applied areas. Initially trained in analytic algebraic number theory, his work has included significant contributions to harmonic analysis, mathematical optimization, discrete geometry, ergodic theory, and low-dimensional topology. He has published numerous works on integer factorial ratios, character sum estimates, and Diophantine equations, and has explored topics in discrete geometry such as packings of regular tetrahedra and rigidity of circle configurations. Lagarias has a notable presence in the academic community with several postings on arXiv related to Number Theory, Dynamical Systems, Classical Analysis, and more. He has also advised doctoral students on various mathematical topics and has received prestigious honors including election to the National Academy of Sciences.

Research Interests