HYKE members gathered and had a dinner at 자연별곡 on August 30th, 2019.
The following is the information for our weekly seminar in this semester.
Date : March 8th, 2019 ~ (every Friday)
Time: 09:00 ~ 12:00
Text: “Foundations of Data Science” by Avrim Blum, John Hopcroft, and Ravindran Kannan
Schedule for presentations
3/7: Woojoo Shim (Ch 3.1-3.7)
3/14: Jinwook Jung (Ch 3.8-3.9)
3/21: Tao Zhou (Ch 4.1-4.5)
3/28: Jaeseung Lee (Ch 4.6-4.8)
4/5: Hansol Park (Ch 5.1-5.7)
4/12: Donghwan Lee (Ch 5.8-5.11)
4/19: Yinglong Zhang (Ch 5.12-5.16)
4/26: Bora Moon (Ch 7.1-7.6)
5/3: Weiyuan Zou (Ch 7.7-7.11)
5/10: Jeongho Kim (Ch 8)
If you want to join our seminar, please contact Hansol Park: hansol960612[at]snu.ac.kr
The graduation ceremony for people who graduate this semester was held on February 1st, 2019.
Although official graduation ceremony was scheduled to be February, 2019, we held our own ceremony earlier due to other team members’ schedule.
Our team members, Dohyun Kim and Doheon Kim received Ph.D degree.
There will be an invited talk.
Title: Green’s functions and Well-posedness of Compressible Navier-Stokes equation
Speaker: Prof. Shih-Hsien Yu (National University of Singapore)
Time: 2018 November 13th, 4:00pm~5:00pm
A class of decomposition of Green’s functions for the compressilbe Navier-Stokes linearized around a constant state is introduced. The singular structures of the Green’s functions are developed as essential devices to use the nonlinearity directly to covert the 2nd order quasi-linear PDE into a system of zero-th order integral equation with regular integral kernels. The system of integrable equations allows a wider class of functions such as BV solutions. We have shown global existence and well-posedness of the compressible Navier-Stokes equation for isentropic gas with the gas constant γ∈(0,e) in the Lagrangian coordinate for the class of the BV functions and point wise L∞ around a constant state; and the
underline pointwise structure of the solutions is constructed. It is also shown that for the class of BV solution the solution is at most piecewise C2-solution even though the initial data is piecewise C^infty.