The first partial answer to this question was given by Bonk and Heinonen (Acta Math., 2001), using a compactness argument based on the de Rham cohomology of differential forms. Eden Prywes ...

RALEIGH, N.C. (WNCN) — Raleigh and Durham fire crews responded to a vehicle fire after a car crashed off a ramp just off Interstate 40 near Interstate 540 early Saturday evening. The call was first ...