Kyoto University Applied Mathematics Seminar (KUAMS)

 

Records of past seminars: year 2021

 

 

No. 79:   January 26, 2021 (Tue) 16:30-18:00


Dr. Kazuki Koga (Department of Mathematics, Kyoto University)
"Signal processing approach to mesh control in simulations of axisymmetric droplet dynamics"

Koga_sanAbstract: This talk was given in Japanese.

Note: This talk took place in the form of an online Zoom meeting for involved members only.








 

No. 80:   April 20, 2021 (Tue) 16:45-18:15


Hiroaki Bando (Graduate school of Informatics, Department of System Science, Kyoto University)
"Causal inference for dynamical systems based on the topology of attractors"

Bando_sanAbstract: This talk was given in Japanese.

Note: This talk took place in the form of an online Zoom meeting for involved members only. This seminar was co-organized by Kyoto Dynamical Systems Seminar.












 

No. 81:   May 18, 2021 (Tue) 16:45-18:15


Dr. Patrick van Meurs (Institute of Science and Engineering, Kanazawa University)
"Discrete-to-continuum convergence of charged particles in 1D with annihilation"

Patrick_van_MeursAbstract: We consider Coulomb particles of positive and negative charge moving on the real line. The velocity of each particle is given by the electric field induced by the other particles. Particles typically collide in finite time. Upon collision, we remove them from the system. The figure illustrates the trajectories of the particles.
Our main aim is to pass to the limit as the number of particles tends to infinity. The difficulty is due to both the singularity of the electric field and the particle collisions. We overcome this difficulty by using nifty ODE tricks and by fine-tuning the notion of viscosity solutions.
This is joint work with M.A. Peletier (Eindhoven U, Netherlands) and N. Pozar (Kanazawa U).