Speaker : Professor Jaewon Lee (Yeungnam University, Korea) Title : Helicoidal Surfaces with prescribed curvatures in $Nil_3$ Time : 2014-07-18 (Fri) 16:00 - 17:00 Place : Seminar Room 714, Institute of Mathematics (NTU Campus) Abstract: We study helicoidal surfaces in the 3-dimensional Heisenberg group $Nil_3$. Also, we construct helicoidal surfaces in $Nil_3$ with prescribed Gaussian curvature or mean curvature given by smooth functions. As the results, we classify helicoidal surfaces with constant Gaussian curvature or constant mean curvature.