S. John Hogan is a professor of Applied Mathematics and leader of the "Applied Nonlinear Mathematics Group" in the Department of Engineering Mathematics, University of Bristol. He is known for his work in numerous applications of non-linear dynamics including water waves liquid crystals.
Hogan is principal investigator on several large EPSRC grants, in 2008 totalling around £6M[1] – an unusually high total for a UK mathematician. These include the "Bristol Centre for Complexity Sciences", the "Bristol Centre for Applied Nonlinear Mathematics", "Applied Nonlinear Mathematics: Making it Real".[2]