What's up in

group theory

profiles

A Life in Games

August 28, 2015

The mathematician John Horton Conway’s myriad accomplishments — including the Game of Life, sprouts and the surreal numbers — are the product of a mind at play.

number theory

Mathematicians Chase Moonshine’s Shadow

March 12, 2015

Researchers are on the trail of a mysterious connection between number theory, algebra and string theory.