Bjorn Poonen

Bjorn Poonen is a Distinguished Professor in Science and Professor of Mathematics at the Massachusetts Institute of Technology. His research focuses on number theory and algebraic geometry, particularly the study of rational number solutions to multivariable polynomial equations and the investigation of undecidable problems. Poonen received his A.B. in Mathematics and Physics from Harvard in 1989 and his Ph.D. in Mathematics from UC Berkeley in 1994. He joined MIT in 2008 after serving on the faculty at UC Berkeley. Poonen has held various fellowships and has been recognized for his contributions to mathematics, including the AMS Doob Prize for his book 'Rational Points on Varieties.'

Bjorn Poonen is a Distinguished Professor in Science at MIT, specializing in Algebraic Geometry and Number Theory. His research focuses on rational points on varieties, Bertini theorems over finite fields, and the Cassels-Tate pairing on polarized abelian varieties. He has contributed to the study of cycles of quadratic polynomials, explicit descent for Jacobians of cyclic covers, and the classification of rational preperiodic points of quadratic polynomials. His work also explores the Grothendieck ring of varieties, Selmer groups, and the distribution of ranks of elliptic curves. Poonen's research bridges algebraic geometry and number theory, addressing deep questions in arithmetic geometry and Diophantine equations.