1. 일시 : 10월 18일 금요일 오후 4시
2. 장소 : 아산이학관 526호(권택연 세미나실)
3. 연사 : Prof. José Ayala Hoffmann (Universidad Arturo Prat)
4. 제목 : On Ribbonlength, ropelength, and spaces of geometric knots.
5. 초록 : The modern study of knots lies at the heart of low dimensional topology, where knots are viewed as elastic loops. However, real life knots, such as ropes, fibers, and DNA have thickness, fixed length and bounded flexibility. In this talk, I will discuss some recent results on geometric knot theory such as the solution (for some cases) of the ribbonlength problem, and the existence of isotopy classes of geometric knots different from the ones in classical knot theory, called the Gordian knot conjecture.