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Departmental Colloquia

30 Wednesday Nov 2022
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04:00 PM 05:00 PM

Evolving finite element methods with an artificial tangential velocity for mean curvature flow and Willmore flow

ABSTRACT An artificial tangential velocity is introduced into the evolving surface finite element methods for mean curvature flow and Willmore flow in order to improve the mesh quality in approxima...
Venue: B5-311 Yeung Kin Man Academic Building
30 Wednesday Nov 2022
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03:00 PM 04:00 PM

Large ranking games with diffusion control

ABSTRACT We consider a symmetric stochastic differential game where each player can control the diffusion intensity of an individual dynamic state process, and the players whose states at a determi...
Venue: Online via Zoom
23 Wednesday Nov 2022
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03:00 PM 04:00 PM

Resolution analysis in some scattering problems and enhanced resolution in certain scenarios

ABSTRACT In this talk, we explore image resolution and the ill-posed-ness of inverse scattering problems.  In particular, we would like to discuss how certain properties of the inclusion might...
Venue: Online via Zoom
18 Thursday Aug 2022
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05:00 PM 06:00 PM

A posteriori error analysis for discontinuous Galerkin methods on polygonal and polyhedral meshes

ABSTRACT PDE models are often characterised by local features such as solution singularities/layers and domains with complicated boundaries and phase transitions....
Venue: Online Zoom
19 Thursday May 2022
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04:00 PM 05:00 PM

Recent Progress on the Study of Euler-Poisson System

ABSTRACT In this talk, I will present recent results on three types (subsonic, supersonic, smooth transonic) of solutions to the steady Euler-Poisson system This talk is based on several joint work...
Venue: Online via Zoom
23 Tuesday Apr 2019
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04:30 PM 05:30 PM

Augmented Methods for Porous Media and Fluid Flow Couplings

Abstract : Simulation of fluid and porous media couplings, multi-particles & multi-scale problems is important and challenging because of different governing equations, muilti-scales and multi-...
Venue: B6605, Blue Zone, Floor 6, Yeung Kin Man Academic Building (YEUNG), City University of Hong Kong
16 Tuesday Apr 2019
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04:30 PM 05:30 PM

Coupling and decoupling of free flow and porous media flow

Abstract : Many natural and engineering processes involve the interaction of free flow with flows in porous media....
Venue: 3508, Li Dak Sum Yip Yio Chin Academic Building (LI) City University of Hong Kong
02 Tuesday Apr 2019
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03:30 PM 04:30 PM

Recent Developments of Low Rank Approximation of Matrices

Abstract : In this talk we survey recent essential developments (2, 3) of the ideas of low-rank matrix approximation proposed in (1)....
Venue: LT-3, Yeung Kin Man Academic Building (YEUNG) City University of Hong Kong
05 Tuesday Mar 2019
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04:30 PM 05:30 PM

Rational Striking in Financial Economics

Abstract : This talk will present two results on the striking strategy in financial economics....
Venue: 2208, Li Dak Sum Yip Yio Chin Academic Building (LI) City University of Hong Kong
26 Tuesday Feb 2019
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04:30 PM 05:30 PM

Smoothing spline mixed-effects density models for clustered data

Abstract : Smoothing spline mixed-effects density models are proposed for the nonparametric estimation of density and conditional density functions with clustered data....
Venue: 2310, Li Dak Sum Yip Yio Chin Academic Building (LI) City University of Hong Kong