Sergey Sergeev was born in Moscow in 1981, living there until 2008, when he defended a PhD in Mathematics at the Faculty of Mechanics and Mathematics of M.V. Lomonosov Moscow State University. Sergey also has MSc in Physics, obtained from the Physics Department of the same University in 2004.
The tropical mathematics has been his research area from the very beginning. In the Physics Department of MSU, Sergey studied under the guidance of A.N. Sobolevskii, G.L. Litvinov and academician V.P. Maslov, his first official supervisor. His main area of interest was tropical convexity (from tropical segments to tropical cones and the Hahn-Banach separation of several tropically convex sets).
In 2008 Sergey became a Research Fellow in Birmingham and worked on an EPSRC funded project “Feasibility and Reachability in Max-linear Systems” with P. Butkovic, the Principal Investigator for the project, and Visiting Researcher, H. Schneider. Together they wrote several works on tropical linear algebra (on the tropical matrix powers, visualisation scaling and, later, on Z-matrix equations). Sergey also did some research in tropical convexity and the connection between tropical algebra and mean-payoff games, with S. Gaubert. In 2010 Sergey went to France (Ecole Polytechnique), where he worked in the Max-plus team of S. Gaubert, on the tropical analogue of linear-fractional programming. In 2012 he returned to Birmingham to work as a Research Fellow on another EPSRC funded project.
Since March 2014 Sergey has been a Lecturer in Mathematical Optimisation. Currently he is working on an EPSRC funded grant EP/P019676/1 "Tropical Optimisation", being focused on various forms of tropical optimisation such as tropical pseudoquadratic and bilevel optimisation. He has been active as organiser of one-day minisymposia in Tropical Mathematics such as a minisymposium on Tropical Mathematics and its Applications in the framework of ILAS-2016 conference in Leuven, Belgium and LMS Workshop on Tropical Mathematics held in Birmingham, November 2017. He is teaching Non-Linear Programming II, a module for 4th year students and Ph.D students which is mostly on Dynamic Programming and Optimal Control.
In June 2018, Sergey co-organized a one-day conference "Tropical Mathematics and Optimization for Railways" (joint with Prof. Clive Roberts).