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Seminars

25 Thursday Jan 2024
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03:00 PM 04:00 PM

On elliptic and parabolic problems arising from composite materials

ABSTRACT In the presence of closely located inclusions in elastic composite materials consisting of inclusions and a matrix of different material properties, the stress represented by the gradient ...
Venue: Y4702, Yeung Kin Man Academic Building
14 Thursday Dec 2023
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03:00 PM 04:00 PM

Unbiased Langevin Monte Carlo

ABSTRACT Markov chain Monte Carlo (MCMC) is a powerful and well-known class of methods aimed to sample from probability distributions....
Venue: Online Via Zoom Registration Link: https://cityu.zoom.us/meeting/register/tJIud--trzsoE9FcKaLhqYhCvAhMcjX_q5Fj
14 Thursday Dec 2023
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10:00 AM 11:00 AM

Deep Neural Network Approximation via Function Compositions

ABSTRACT Deep neural networks have brought transformative changes in areas such as image recognition and healthcare, yet their underlying theoretical principles remain somewhat elusive....
Venue: Online Via Zoom Registration Link: https://cityu.zoom.us/meeting/register/tJAsf--urjsqHtRrjIq8LPssJwBVloPmBGNs
12 Tuesday Dec 2023
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03:00 PM 04:00 PM

Physics-informed neural networks for non-smooth PDE-constrained optimization problems

ABSTRACT We study the application of well-known physics-informed neural networks (PINNs) for solving non-smooth PDE-constrained optimization problems....
Venue: Online Via Zoom Registration Link: https://cityu.zoom.us/meeting/register/tJEvfumurzsjGdToYKW_ReVu64WnhIkTbJKT
11 Monday Dec 2023
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10:00 AM 11:00 AM

Analysis and numerics for some photonic and quantum interacting systems

ABSTRACT In this talk, we discuss some recent results for photonic and quantum interacting systems....
Venue: Online Via Zoom Registration Link: https://cityu.zoom.us/meeting/register/tJIpc--rpz4qHtG4E1Y9d17ogm_FvYJtuvTs
06 Wednesday Dec 2023
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10:00 AM 11:00 AM

Harnessing the power of PCA in modern applications

ABSTRACT In the era of big data, the analysis of large scale text and network data has become a widely studied hot topic....
Venue: Online Via Zoom Registration Link: https://cityu.zoom.us/meeting/register/tJcuc-6prz4rGtSO46fmIn05JQoRXaUSoDkm
21 Tuesday Nov 2023
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10:00 AM 11:00 AM

On the Borel summability of formal solutions of certain higher-order linear ordinary differential equations

ABSTRACT We will consider a class of $n$th-order linear ordinary differential equations with a large parameter $u$....
Venue: Y5-203, Yeung Kin Man Academic Building
30 Friday Jun 2023
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10:00 AM 11:00 AM

Sharp local well-posedness for quasilinear wave equations with spherical symmetry

ABSTRACT In this talk, I will present a sharp local well-posedness result for spherically symmetric solutions to quasilinear wave equations with rough initial data, when the spatial dimension is th...
Venue: Online via Zoom https://cityu.zoom.us/meeting/register/tJcsc-yhqTsqGNBPSWEJdr1uOEDUHERj1N9P
29 Thursday Jun 2023
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10:00 AM 11:00 AM

Inverse Problems in Image Processing, Computer Graphics and Dynamic Identification

ABSTRACT The goal of this talk is to show you a gallery of my recent works focusing on inverse problems with various applications ranging from image processing, computer graphics, and dynamic ident...
Venue: Online via Zoom https://cityu.zoom.us/meeting/register/tJUucuurrzwuE9yVLS8XsIi0MxuFhxrQq7Z_
17 Tuesday Jan 2023
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05:00 PM 05:50 PM

Affine restriction estimates for surfaces in R^3 via decoupling

ABSTRACT We will discuss some L^2 restriction estimates for smooth compact surfaces in R^3 with affine surface measure and certain powers thereof....
Venue: Y5-205 Yeung Kin Man Academic Building