최근 동영상
수학강연회
특별강연
대중강연
입학전 특별강좌 (가)
인문사회계를 위한 수학
수학 및 연습 1
기초수학
공학수학


학부생을 위한 ε 강연회: Constructions by ruler and compass together with a conic

최인송 (건국대/서울대)
2013. 03. 21.

Trisection of an angle and duplication of a cube are among the famous problems of Greeks.
Although they were proven later to be impossible in general, Greeks already knew that one can trisect an angle and duplicate a cube by supplimenting several conics other than circles.
In this talk, we show that one single conic is sufficient, which is reminiscent of the Poncelet-Steiner theorem.