dnam

Dongnam Ko (고동남, 高東男)

Ph. D. Student

Department of Mathematical Sciences, Seoul National University,
1 Gwanak-ro, Seoul, 08826, Republic of Korea (South Korea)

pyeong [at] snu.ac.kr

Office: (+82)-2-880-1491, http://hyke.snu.ac.kr

Research interest

  • Emergent dynamics of coupled particle networks
  • Long-time behavior of mean-field dynamics
  • Numerical methods on kinetic dynamics

CV (Updated at 10/04/2017)

Publications (ResearchGate)

• Junghee Choi, Seung-Yeal Ha, Feimin Huang, Chunyin Jin, Dongnam Ko, Emergence of bi-cluster flocking for agent-based models with unit speed constraint. Analysis and applications, 14, 39 (2016), DOI : 10.1142/S0219530515400023

• Junghee Choi, Seung-Yeal Ha, Feimin Huang, Chunyin Jin, Dongnam Ko, Emergence of bi-cluster flocking for the Cucker-Smale model. Mathematical Models and Methods in Applied Sciences, 26, 1191 (2016), DOI: 10.1142/S0218202516500287

• Seung-Yeal Ha, Dongnam Ko, Jinyoung Park, Sang-Woo Ryoo, Emergent dynamics of Winfree oscillators on locally coupled networks. Journal of Differential Equations, 260 (2016), no.5, 4203-4236, DOI: 10.1016/j.jde.2015.11.008

• Seung-Yeal Ha, Dongnam Ko, Jinyeong Park, Xiongtao Zhang, Collective synchronization of classical and quantum oscillators. EMS Surveys in Mathematical Sciences, 3 (2016), no.2, 209-267, DOI: 10.4171/EMSS/17

• Seung-Yeal Ha, Dongnam Ko, Jinyeong Part, Sang-Woo Ryoo, Emergence of partial locking states from the ensemble of Winfree oscillators. Quarterly of Applied Mathematics, 75 (2017), 39-68, DOI: 10.1090/qam/1448

• Seung-Yeal Ha, Dongnam Ko, Xiongtao Zhang, Yinglong Zhang, Emergent dynamics in the interactions of Cucker-Smale ensembles. Kinetic and Related Models, 10 (2017), DOI: 10.3934/krm.2017028

• Seung-Yeal Ha, Dongnam Ko, Sang-Woo Ryoo, Emergent dynamics of a generalized Lohe model on some class of Lie groups. Journal of Statistical Physics, 168 (2017), no.1, 171-207, DOI: 10.1007/s10955-017-1797-8

• Seung-Yeal Ha, Dongnam Ko, Yinglong Zhang, Critical coupling strength of the Cucker-Smale model for flocking. To appear in Mathematical Models and Methods in Applied mathematics.

• Seung-Yeal Ha, Dongnam Ko, Xiongtao Zhang, Yinglong Zhang, Time-asymptotic interactions of two ensembles of Cucker-Smale flocking particles. To appear in Journal of Mathematical Physics.

• Seung-Yeal Ha, Dongnam Ko, Yinglong Zhang, Phase transition phenomenon in an ensemble of identical Kumamoto oscillators under frustration. Submitted to SIAM on Applied Dynamical Systems.

• Seung-Yeal Ha, Dongnam Ko, Yinglong Zhang, On the Critical coupling strength for the Cucker-Smale model with unit speed. Submitted to Discrete and Continuous Dynamical Systems-A.

• Seung-Yeal Ha, Chohong Min, Jungho Kim, Dongnam Ko, Unstability of total variation in Hamilton-Jacobi equation. Submitted.

• Seung-Yeal Ha, Dongnam Ko, Sang-Woo Ryoo, On the relaxation dynamics of Lohe oscillators on some Riemannian manifolds. Submitted.

• Seung-Yeal Ha, Dohyun Kim, Dongnam Ko, Particle-path analysis on synchronization states of stochastic Schr¨odinger-Lohe system. Preprint.

• Seung-Yeal Ha, Dongnam Ko, Chanho Min, Emergent dynamics of Kuramoto particles in a random environment, Preprint.

• Barbara Gentz, Seung-Yeal Ha, Dongnam Ko, Cristian Weisel, Emergent behaviors of the stochastic Kuramoto model with additive noises. Preprint.

• Seung-Yeal Ha, Dongnam Ko, Sung-Ik Sohn, Hyeong-Ohk Bae, Jungho Kim, Flocking dynamics of Cucker-Smale particles in an incompressible fluid channel. Preprint.

• Seung-Yeal Ha, Jungho Kim, Dongnam Ko, Corrando Lattanzio, Time-asymptotic behavior of traffic flow coupled with flocking particles. Preprint.

 

Talks

• October 20 – 23, 2016, International Conference for the 70th Anniversary of Korean Mathematical Society, Seoul National University, Korea :“Emergent dynamics of Cucker-Smale flocking ensembles”

• November 8 – 11, 2016, CMC Workshop on Collective Dynamics of Many-Body Systems and Related Topics, Seoul National University, Korea :“Particle-path analysis on Kuramoto oscillators with additive noise”

• January 9 – 13, 2017, Workshop on Collective Dynamics of Muti-agent Systems Modeling, Analysis and Applications, Tsinghua University, Sanya, China :“Synchronization of Kuramoto model under additive noise”

• (Scheduled) August 21 – 24, 2017, CMC conference: Nonlinear dynamics of many-body systems and related topics, KIAS, Seoul, Korea :“Emergent dynamics of Kuramoto ensembles in a random environment”

 

Posters

• July 6 – 10, 2015, Equadiff 2015, Universit Claude Bernard Lyon 1, Lyon, France :“Emergence of bi-cluster flocking for the Cucker-Smale model”

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