SustainRWorld Day, which launches September 8th at the United Nations, is an initiative intended to rally the private sector to help achieve the Sustainable Development Goals by inspiring a movement ...

THERE are several excellent treatises dealing exhaustively with modern ideas of geometry and analysis, but the bulk and difficulty of these works repel those who are not specialists. The University of ...

The original formed the first part of "Festschrift zur feier der enthüllung des Gauss-Weber-denkmals in Göttingen, Grundlagen der geometrie," with the additions made by the author in the French ...