# Departmental Distinguished Lecture

15 Wednesday Mar 2023
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04:00 PM 05:00 PM

### First order least squares methods for parabolic and instationary Stokes equations

ABSTRACT This presentation will be about the numerical solution of parabolic PDEs....
Venue: Online Zoom Registration Link: https://cityu.zoom.us/meeting/register/tJEtfumhqT4uEtGx6CdoCfmCHskgdJcSxd_p
01 Wednesday Mar 2023
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04:00 PM 05:00 PM

### Uniform controllability of semidiscrete hyperbolic equations via moment problems

ABSTRACT We consider a finite-difference semi-discrete scheme for the approximation of controls of one-dimensional evolution problems of hyperbolic type....
Venue: Online via Zoom Registration link: https://cityu.zoom.us/meeting/register/tJ0rdOGprDMjHd1rFQtuCOCe_MinapEerayc
20 Monday Feb 2023
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10:00 AM 11:00 AM

### Integrable peakon models generated from negative order flows

ABSTRACT In this talk, I will majorly focus on the scalar peakon models developed in last 30 years. Most integrable peakon equations come from the negative order flow in the hierarchy....
Venue: Online via Zoom Registration link: https://cityu.zoom.us/meeting/register/tJMlduGrqDwrHdVBgT8CNWjvTO8WrWd_EVEA
11 Wednesday Jan 2023
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04:00 PM 05:00 PM

### Recent Progress on Mixed Finite Element Methods of Linear Elasticity

ABSTRACT The finite element method was invented for stress analysis of elasticity problems in the 1960s....
Venue: Online via Zoom Registration Link: https://cityu.zoom.us/meeting/register/tJ0uf-uuqjgrHt3u0bu7WZSVl4pHHBP-fL0j
26 Wednesday Oct 2022
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04:00 PM 05:00 PM

### 40 Years of Calderon's Problem

ABSTRACT We survey some of the results obtained during the last 40 years on Calderon's inverse problem: Can one determine the electrical conductivity in the interior of a medium by making voltage a...
Venue: 1312, Li Dak Sum Yip Yio Chin Academic Building (LI)
21 Thursday Jul 2022
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04:00 PM 05:00 PM

### Global well-posedness and regularity of 3D stochastic Burgers equation with multiplicative noise

ABSTRACT This talk is concerned with a 3D Burgers equation perturbed by a linear multiplicative noise....
Venue: Online Zoom
05 Thursday May 2022
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04:00 PM 05:00 PM

### Hybrid high-order methods for biharmonic problem

ABSTRACT We start with a gentle introduction to the devising and analysis of hybrid high-order (HHO) methods for the Poisson model problem....
Venue: Online Zoom
07 Thursday Apr 2022
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10:00 AM 11:00 AM

### Low-bit representations of oversampled signal expansions and neural networks

ABSTRACT We discuss mathematical aspects of how to digitally represent information. Redundancy or oversampling is an important ingredient in many types of signal representations....
Venue: Online Zoom
10 Thursday Mar 2022
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10:00 AM 11:00 AM

### Capillary Gravity Water Waves Linearized at Monotone Shear Flows: Eigenvalues and Inviscid Damping

ABSTRACT We consider the 2-dim capillary gravity water wave problem -- the free boundary problem of the Euler equation with gravity and surface tension -- of finite depth $x_2 \in (-h,0)$ linearize...
Venue: Online Zoom
24 Thursday Feb 2022
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04:00 PM 05:00 PM

### Inverse problems for non-linear partial differential equations

ABSTRACT In the talk we give an overview on how inverse problems can be used solved using non-linear interaction of the solutions....
Venue: Online Zoom