Of all the ideas we’ve forgotten from math class, the most important to relearn – because it illuminates our most urgent challenges – is the difference between arithmetic and geometric progressions.

Of all the ideas we’ve forgotten from math class, the most important to relearn — because it illuminates our most urgent challenges — is the difference between arithmetic and geometric progressions.

Our research group is concerned with two lines of investigation: the construction and study of (new) cohomology theories for algebraic varieties and the study of various aspects of the Langlands ...