Eugenio Calabi, who died on September 25, conceived of novel geometric objects that later became fundamental to string theory. The post The Mathematician Who Sculpted the Shape of Space first appeared on Quanta Magazine
Eugenio Calabi was known to his colleagues as an inventive mathematician — “transformatively original,” as his former student Xiuxiong Chen put it. In 1953, Calabi began to contemplate a class of shapes that nobody had ever envisioned before. Other mathematicians thought their existence was impossible. But a couple of decades later, these same shapes became extremely important in both math and…