| Citation | Martin Bridson is the Whitehead Professor of Pure Mathematics at Oxford. He has played a leading role in establishing Geometric Group Theory as a major field. He was an ICM Speaker (2006) and Abel Lecturer (2009). His monograph with Haefliger is the authoritative text on spaces of non-positive curvature. By developing numerous geometric techniques, Bridson provided deep insights into the nature of the word problem for finitely presented groups. Following his profound study of non-positive curvature in group theory, he solved (with Grunewald) Grothendieck's problems concerning profinite completions and representations of groups. He has proved remarkable structure theorems for residually-free groups. |