This book lays the foundation for a theory of coarse groups: namely, sets with operations that satisfy the group axioms “up to uniformly bounded error”. The

Elementary introduction to stable maps and quantum cohomology presents the problem of counting rational plane curves Viewpoint is mostly that of enumerative geo

Provides a general framework for doing geometric group theory for non-locally-compact topological groups arising in mathematical practice.

Following the fundamental insights from quantum mechanics and general relativity, geometry itself should have a quantum description; the search for a complete u

William Thurston (1946–2012) was one of the great mathematicians of the twentieth century. He was a visionary whose extraordinary ideas revolutionized a broad