Gary P. T. Choi


Vice-Chancellor Assistant Professor
Department of Mathematics
The Chinese University of Hong Kong

Email: ptchoi@cuhk.edu.hk
Office: Room 204, Lady Shaw Building, CUHK

Telephone: (852) 3943-5481

Gary Choi is a Vice-Chancellor Assistant Professor in the Department of Mathematics at The Chinese University of Hong Kong. He obtained his Ph.D. in Applied Mathematics from Harvard University in 2020. Prior to starting at CUHK, he worked as an NSF Postdoctoral Fellow and Instructor in Applied Mathematics at MIT from 2020-2023.

His research interests include applied and computational geometry, interdisciplinary mathematical modeling, metamaterial design, quantitative biology, medical imaging, geometry processing, and scientific computing.

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Riding a tricycle with square wheels at the National Museum of Mathematics, New York.

Here is my professional headshot.


News


Mar 2024 Our work on In vivo microrheology reveals local elastic and plastic responses inside three-dimensional bacterial biofilms (with T. Ohmura, D. J. Skinner, K. Neuhaus, J. Dunkel, and K. Drescher) has been published in Advanced Materials.

Mar 2024 Our work on Fast ellipsoidal conformal and quasi-conformal parameterization of genus-0 closed surfaces has been published in Journal of Computational and Applied Mathematics.

Jan 2024 Our work on Bijective density-equalizing quasiconformal map for multiply connected open surfaces (with Z. Lyu and L. M. Lui) has been accepted by SIAM Journal on Imaging Sciences.

Jan 2024 I gave a talk on Quantifying shape variation using quasi-conformal geometry at 2024 Joint Mathematics Meetings.

Sep 2023 Our work on Beak morphometry and morphogenesis across avian radiations (with S. Mosleh, G. M. Musser, H. F. James, A. Abzhanov, and L. Mahadevan) has been published in Proceedings of the Royal Society B.

Sep 2023 I gave a talk on Quantifying shape variation using quasi-conformal geometry at BIRS Workshop on Mathematical Methods for Exploring and Analyzing Morphological Shapes across Biological Scales.

Aug 2023 I gave a talk on Density-equalizing map with applications at The 10th International Congress on Industrial and Applied Mathematics (ICIAM).

Jul 2023 I have joined The Chinese University of Hong Kong as a tenure-track assistant professor under the University’s flagship Vice-Chancellor Early Career Professorship Scheme.

Jun 2023 Our work on Automatic landmark detection and registration of brain cortical surfaces via quasi-conformal geometry and convolutional neural networks (with Y. Guo, Q. Chen and L. M. Lui) has been published in Computers in Biology and Medicine.

May 2023 Our work on An additive framework for kirigami design (with L. H. Dudte, K. P. Becker, and L. Mahadevan) has been published in Nature Computational Science.

Mar 2023 Our work on Explosive rigidity percolation in kirigami (with L. Liu and L. Mahadevan) has been published in Proceedings of the Royal Society A.

Feb 2023 Our work on Recent developments of surface parameterization methods using quasi-conformal geometry (with L. M. Lui) has been published in Handbook of Mathematical Models and Algorithms in Computer Vision and Imaging.

Feb 2023 Our work on Combined measures of mimetic fidelity explain imperfect mimicry in a brood parasite-host system (with T. Dixit, S. Al-Mosleh, J. Lund, J. Troscianko, C. Moya, L. Mahadevan, and C. N. Spottiswoode) has been published in Biology Letters.

Feb 2023 Our work on Learning hydrodynamic equations for active matter from particle simulations and experiments (with R. Supekar, B. Song, A. Hastewell, A. Mietke, and J. Dunkel) has been published in Proceedings of the National Academy of Sciences.

Dec 2022 I gave a talk on Geometric design of kirigami metamaterials at the Geometry & Packing in Material Structure & Biology (GeomPack).

Nov 2022 My research mentees Hiu-Long Chan and Bok-Man Cheung have received the Gold Award in Mathematics in the S.T. Yau High School Science Award (Asia) for their work on the divergence and bounds of a class of series involving coprime numbers. Congratulations, Hiu-Long and Bok-Man!

Oct 2022 Our work on Parallelizable global quasi-conformal parameterization of multiply connected surfaces via partial welding (with Z. Zhu and L. M. Lui) has been published in SIAM Journal on Imaging Sciences.

Oct 2022 The code of our works on Inverse Kirigami Design, Additive Kirigami and Kirigami Deployment Simulator can now be found on GitHub.

Aug 2022 Our work on Quasicrystal kirigami (with L. Liu and L. Mahadevan) has been published in Physical Review Research and selected as Editors' Suggestion.

Aug 2022 Our work on Modular representation and control of floppy networks (with S. Chen, F. Giardina and L. Mahadevan) has been published in Proceedings of the Royal Society A.

Jun 2022 Our work on A unifying framework for n-dimensional quasi-conformal mappings (with D. Zhang, J. Zhang and L. M. Lui) has been published in SIAM Journal on Imaging Sciences.

Jun 2022 Our work on Adaptive area-preserving parameterization of open and closed anatomical surfaces (with A. Giri and L. Kumar) has been published in Computers in Biology and Medicine.

May 2022 I gave a talk on Additive kirigami at the New England Workshop on the Mechanics of Materials and Structures (NEW.Mech 2022).

Mar 2022 I gave a talk on Geometric design of kirigami metamaterials at the SIAM Conference on Imaging Science (SIAM-IS22).

Mar 2022 Ronald Lui and I co-organized a minisymposium on Geometry, Computing and Learning for Science and Engineering at the SIAM Conference on Imaging Science (SIAM-IS22).

Mar 2022 I gave a talk on Additive design of origami and kirigami at the APS March Meeting in Chicago.

Mar 2022 Our work on Quasiconformal model with CNN features for large deformation image registration (with H. Law, K. C. Lam and L. M. Lui) has been published in Inverse Problems and Imaging.

Nov 2021 Our work on Free-boundary conformal parameterization of point clouds (with Y. Liu and L. M. Lui) has been published in Journal of Scientific Computing.

Nov 2021 Our work on Geometry and dynamics link form, function and evolution of finch beaks (with S. Al-Mosleh, A. Abzhanov and L. Mahadevan) has been published in Proceedings of the National Academy of Sciences.

Oct 2021 Our work on Compact reconfigurable kirigami (with L. H. Dudte and L. Mahadevan) has been published in Physical Review Research.

Aug 2021 Our work on Spherical cap harmonic analysis (SCHA) for characterising the morphology of rough surface patches (with M. Shaqfa and K. Beyer) has been published in Powder Technology.

Aug 2021 Our work on Wallpaper group kirigami (with L. Liu and L. Mahadevan) has been published in Proceedings of the Royal Society A.

Jul 2021 Our work on 3D shape reconstruction of small bodies from sparse features (with B. Jarvis, B. Hockman, B. Morrell, S. Bandopadhyay, D. Lubey, J. Villa, S. Bhaskaran, D. Bayard, and I. A. Nesnas) has been published in IEEE Robotics and Automation Letters.

Jul 2021 Our work on Genetic architecture of floral traits in bee- and hummingbird-pollinated sister species of Aquilegia (columbine) (with M. B. Edwards, N. Derieg, Y. Min, A. C. Diana, S. A. Hodges, L. Mahadevan, E. M. Kramer, and E. S. Ballerini) has been published in Evolution.

May 2021 Our work on An additive algorithm for origami design (with L. H. Dudte and L. Mahadevan) has been published in Proceedings of the National Academy of Sciences.

Apr 2021 Our work on Efficient conformal parameterization of multiply-connected surfaces using quasi-conformal theory has been published in Journal of Scientific Computing.

Feb 2021 Our work on Volumetric density-equalizing reference map with applications (with C. H. Rycroft) has been published in Journal of Scientific Computing.