Doosung Choi

Experience

Appointments

Education

Academic visits

Awards & scholarships

• Outstanding Teaching Assistant Award — KAIST (2017, 2018, 2020)
• National Scholarship (graduate type) — Korea Student Aid Foundation (2015–2020)
• Young-Han Kim Global Leader Scholarship — KAIST (2019)
• Award of Excellence in Programming Contest, KSIAM-Mathworks Problem Challenge 2018 — Korean Society for Industrial and Applied Mathematics (KSIAM) (2018)
• Best Poster Award, KSIAM 2018 Spring Conference — KSIAM (2018)
• National Scholarship (undergraduate type) — Korea Student Aid Foundation (2011–2015)
• Bronze Awards in University Students Contest of Mathematics — Korean Mathematical Society (2012, 2013, 2014)

Research

Research interests

• Inverse problems
• Partial differential equations
• Spectral theory
• Materials science
• Wave scattering
• Operator learning

Preprints

1. Doosung Choi and Mikyoung Lim
   Faber-Walsh field expansions for the planar conductivity problem with multiple inclusions
   arXiv:2609.29239 · Preprint
2. Doosung Choi
   Matrix representation of the Neumann–Poincaré operator for a torus
   arXiv:2410.20033 · Preprint
3. Daehee Cho, Doosung Choi, and Mikyoung Lim
   Analytic asymptotic formulas for effective parameters of planar elastic composites
   arXiv:2403.15714 · Preprint
4. Daehee Cho, Doosung Choi, and Mikyoung Lim
   A matrix formulation of the plane elastostatic inclusion problem via geometric function theory
   arXiv:2403.15713 · Preprint

Journal articles

1. Doosung Choi, Mikyoung Lim, and Stephen P. Shipman
   Spectral analysis of the Neumann–Poincaré operator for thin doubly connected domains
   SIAM Journal on Mathematical Analysis, 57(3), 2210–2228 (2025).
2. Doosung Choi and Mikyoung Lim
   Construction of inclusions with vanishing generalized polarization tensors by imperfect interfaces
   Studies in Applied Mathematics, 152(2), 673–695 (2024).
3. Doosung Choi, Johan Helsing, Sangwoo Kang, and Mikyoung Lim
   Inverse problem for a planar conductivity inclusion
   SIAM Journal on Imaging Sciences, 16(2), 969–995 (2023).
4. James Lee Cho, Shaoyang Liu, Pixiang Wang, Joong-Wook Park, Doosung Choi, and Riley Ethan Evans
   Silver Nanoparticles Induced with Aqueous Black Carpenter Ant Extract Selectively Inhibit the Growth of Pseudomonas Aeruginosa
   Biotechnology Letters, 45, 811–821 (2023).
5. Doosung Choi, Junbeom Kim, and Mikyoung Lim
   Geometric multipole expansion and its application to semi-neutral inclusions of general shape
   Zeitschrift für angewandte Mathematik und Physik, 74, Article 39 (2023).
6. Doosung Choi, Kyoungsun Kim, and Mikyoung Lim
   An extension of the Eshelby conjecture to domains of general shape in anti-plane elasticity
   Journal of Mathematical Analysis and Applications, 495(2), 124756 (2021).
7. Doosung Choi, Junbeom Kim, and Mikyoung Lim
   Analytical shape recovery of a conductivity inclusion based on Faber polynomials
   Mathematische Annalen, 381, 1837–1867 (2021).
8. Habib Ammari, Doosung Choi, Sanghyeon Yu
   A mathematical and numerical framework for near-field optics
   Proceedings of the Royal Society A, 474, 20180150 (2018).
9. Doosung Choi, Johan Helsing, and Mikyoung Lim
   Corner effects on the perturbation of an electric potential
   SIAM Journal on Applied Mathematics, 78(3), 1577–1601 (2018).

Presentations

Seminars

• Computational & Uncertainty Analysis SeminarFeb. 2026
  Case Western Reserve University · Cleveland, OH
• Northwestern Analysis SeminarNov. 2024
  Northwestern University · Evanston, IL
• Chemistry & Physics SeminarAug. 2023
  Southeastern Louisiana University · Hammond, LA
  Mathematical modeling of neutral inclusions and inverse problems
• Applied Analysis SeminarOct. 2022
  Louisiana State University · Baton Rouge, LA
  Inverse problem in potential theory using Faber polynomials
• KAIST Math Graduate Student SeminarApr. 2022
  KAIST · Daejeon, Republic of Korea

Conferences & workshops

• Joint Mathematics MeetingsJan. 2025
  Seattle Convention Center · Seattle, WA
  Spectral Analysis of the Neumann-Poincaré operator for nearly touching tori
• The 2nd International AMS-UMI Joint MeetingJul. 2024
  Università degli Studi di Palermo · Palermo, Italy (Online)
  Shape reconstruction for a planar conductivity inclusion
• Applied Inverse Problems ConferenceSep. 2023
  Georg-August-Universität Göttingen · Göttingen, Germany
  Construction of inclusions with vanishing generalized polarization tensors by imperfect interfaces
• AMS Spring Southeastern Sectional MeetingMar. 2023
  Georgia Institute of Technology · Atlanta, GA
  Spectrum of the Neumann–Poincaré Operator for doubly connected thin planar domains
• KSIAM Spring ConferenceMay 2022
  Institute for Basic Science · Daejeon, Republic of Korea
  An extension of the Eshelby conjecture to general shaped domains
• KSIAM Spring ConferenceJun. 2021
  Gangneung TopsTen Hotel · Gangneung, Republic of Korea
  Analytic shape reconstruction of a conductivity inclusion by using Faber polynomials
• Applied Inverse Problems ConferenceJul. 2019
  Université Grenoble Alpes · Grenoble, France
  Construction of multi-coated neutral inclusion of general shaped inclusion
• The 5th East Asia Section of IPIA Young Scholars SymposiumJul. 2019
  Chinese Academy of Sciences · Beijing, China
  Reconstruction of a locally perturbed planar surface using plasmonic sensing
• KSIAM Annual MeetingNov. 2018
  Jeju Ramada Plaza Hotel · Jeju, Republic of Korea
  Construction of multilayered neutral inclusion of general shape
• The 9th International Conference on Inverse Problems and Related TopicsAug. 2018
  National University of Singapore · Singapore
  New geometric factors of the planar inclusion
• KSIAM Spring ConferenceMay 2018
  KAIST · Daejeon, Republic of Korea
  Reconstruction of perturbations on a planar surface by using plasmonic resonances
• KSIAM Spring ConferenceJun. 2017
  Seoul National University · Seoul, Republic of Korea
  Detection of corners on a insulated inclusion by using generalized polarization tensors

Teaching

I teach calculus, differential equations, and linear algebra, connecting rigorous mathematical ideas with applications.

Case Western Reserve University

Instructor · Aug. 2025 – Present

Louisiana State University

Instructor · Jan. 2023 – Jul. 2025

KAIST

Teaching Assistant · Mar. 2016 – Jun. 2021

Student supervision

MATH 352 · Mathematics Capstone
Andrew S. Cho, Case Western Reserve University, Spring 2026.
Conformal Welding via Neural Operators for 2D Shape Analysis.

Earlier teaching & mentoring

• Instructor, Mentoring Academy, Daejeon (July 2013–February 2014).
• Undergraduate assistant for MAS101 Calculus I, KAIST (Spring 2015).
• Counseling assistant, Department of Mathematical Sciences, KAIST (August–December 2015).
• Undergraduate mentoring, KAIST (September 2015–June 2017).

Service

Referee service

SIAM Journal on Mathematical Analysis (2026).

Conference service

• Special session organizer, Joint Mathematics Meetings, Seattle (January 2025).
• Session chair, Applied Inverse Problems Conference, Göttingen (September 2023).

Professional membership

American Mathematical Society, introductory membership (December 2023–December 2025).

Links

Societies & institutions

• AMS
• SIAM
• CWRU Math
• KAIST Math
• LSU Math

Research community

• Anuj Abhishek, Case Western Reserve University
• Habib Ammari, ETH Zurich
• Johan Helsing, Lund University
• Sangwoo Kang, Pusan National University (부산대학교)
• Hyundae Lee, Inha University (인하대학교)
• Mikyoung Lim, KAIST (한국과학기술원)
• Robert P. Lipton, Louisiana State University
• Stephen P. Shipman, Louisiana State University
• Erkki Somersalo, Case Western Reserve University
• Sanghyeon Yu, Korea University (고려대학교)