Years ago, an audacious Fields medalist outlined a sweeping program that, he claimed, could be used to resolve a major ...

If a polycyclic-by-finite rank-K group Γ admits a faithful affine representation making it acting on R K properly discontinuously and with compact quotient, we say that Γ admits an affine structure.

If you’ve ever taken an algebra or physics class, then you’ve met a parabola, the simple curve that can model how a ball flies through the air. The most important part of a parabola is the vertex — ...