Presentation Lee's group presented at Spring 2026 FEM Circus
Postdoc Dr. K. Chawla and Ph.D. student Y. Yang presented their work.
Sanghyun Lee
Associate Professor, Department of Mathematics, Florida State University
Appointments
- Fall 2023 - Associate Professor, Department of Mathematics, Florida State University
- Fall 2017 Assistant Professor, Department of Mathematics, Florida State University
Joint Appointments
Useful Links
News
2026
Ph.D. Defense Ruth Lopez defended her Ph.D thesis
Paper A joint paper with S. Moon and D. Park is published at JCAM
A Machine Learning and Finite Element Framework for Inverse Elliptic PDEs via Dirichlet-to-Neumann Mapping
D. Park, S. Lee, S. Moon, Journal of Computational and Applied Mathematics
D. Park, S. Lee, S. Moon, Journal of Computational and Applied Mathematics
Presentation Lee's group presented at the 4th Southeast ACM Student Workshop
Postdoc Dr. K. Chawla, and Ph.D. students SM Lee, J. Valyou, and Y. Yang presented their work.
Presentation Lee presented at FSU-NC PDE Workshop
Presentation Lee presents at NACS Seminar, Rice University
2025
Presentation Lee presented at ARAMCO
Paper Our paper is now accepted for publication in International Journal for Numerical and Analytical Methods in Geomechanics
The paper is co-authored with Jihoon Kim and Mary Wheeler, and the title of the paper is
The von Neumann Stability Analysis of the Fixed-Stress Schemes in Poroelastodynamics
Paper Our paper is now accepted for publication in Computers and Mathematics with Applications.
The paper is co-authored with Seungmin Lee, and the title of the paper is
Convergence and Numerical Simulations of the Continuous Data Assimilation for Biot’s Poroelasticity
Paper Our paper is now accepted for publication in International Journal for Numerical and Analytical Methods in Geomechanics
The paper is co-authored with Hemanta Kunwar and Son-Young Yi, and the title of the paper is
Non-intrusive global-local method for poroelasticity problems with localized pressure effects.
Presentation Lee presented a talk at ARMA Hydrualic Fracturing Seminar
Presentation Lee presented a talk at CCAM Purdue University, Indiana
Organizer/Presentation Lee co-chaired to orgainze a minisymposium at SIAM GeoScience Conference in LSU. Also, presented a talk
Organizer/Presentation Lee co-chaired to orgainze 8th Biot Conference in Utah. Also, presented a talk
The program of this conference is provided in this link Program
Presentation Kapil Chawla and Jonathan Valyou presented in 12th Graduate Student Conference at Clemson University
The program of this conference is provided in this link Program
Paper Our paper is now accepted for publication in Journal of Compuational Physics
The paper is co-authored with Ryuou Hu, Sanjeeb Poudel, and Feng Bao from Florida State University, and it is titled
Ensemble Score Filter for Data Assimilation of Two-Phase Flow Models in Porous Media
The arXiv is provided in below link
Paper Our paper is now accepted for publication in Journal of Compuational Physics
The paper is co-authored with Yi-Yung Yang and Dmitri Kuzmin (TU Dortmnud), and it is titled Bound-preserving and entropy stable enriched Galerkin methods for nonlinear hyperbolic equations.
The arXiv is provided in below link
Presentation Lee presented a Talk at MoST 2025 - Moselle Vally, Germany
The list of the participants and the photo is here link
The title of my talk was Bound-preserving and entropy stable enriched Galerkin methods for nonlinear hyperbolic equations
The title of my talk was Bound-preserving and entropy stable enriched Galerkin methods for nonlinear hyperbolic equations
New Member Kapil Chawla joined our group at FSU
Kapil Chawla has his Ph.D from Indiana University (2025). His Ph.D advisor is R. Temam. Kapil is funded by the DOE Earthshot program and will be working on developing machine learning based multi scale methods. Welcome!
Funded Projects
Active
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DE-SC0024703
DOE Science Foundations for the Energy Earthshots
10/2023-09/2026
Advanced Multi-Physics Machine Learning for Subsurface Energy Systems Across Scales -
NSF #2349382
National Science Foundation DMS
09/2024 - 08/2027
REU Site: Applied Mathematics in Real World Problems
Completed
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Supplemental: Geothermal INTERN DMS-2419267
National Science Foundation DMS
06/2024 - 05/2025
Dear Colleague Letter: Non-Academic Research Internships for Graduate Students in Geothermal Energy
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Supplemental: Geothermal INTERN DMS-2327841
National Science Foundation DMS
06/2023-05/2024
Dear Colleague Letter: Non-Academic Research Internships for Graduate Students in Geothermal Energy
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Collaborative Research: DMS-2208402
National Science Foundation DMS
06/2022-06/2025
Physics-Preserving Adaptive Finite Element Methods for Thermo-Poroelasticity
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DMS-1913016
National Science Foundation DMS
08/2019-07/2022
Fluid-filled Fracture Propagation with a Phase-Field Approach in Subsurface by Employing Nonlinear Strain-Limiting Models and Enriched Galerkin Methods
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Florida State University Multidisciplinary Support 2020-2021MDS: #045490Studies for Degradation of Lignin-based Biodegradable Plastics to Prevent Marine DebrisCRC linkFlorida State University First Year Assistant Program (FYAP) 05/2018 - 08/2018CRC: 041950Optimal Error Estimate of Flow Problems with Dirac Sources in Subsurface for Discontinuous and Enriched Galerkin Methods
Upcoming Workshops/Conferences/Talks/Events
2026-
20-22 Jan 2026Numerical Analysis and Scientific Computing Seminar
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13-14 Feb 2026FSU-NC State University PDE workshop
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3-4 April 20264th Southeast Applied & Computational Math Student Workshop (link)
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13-17 April 2026ICERM Workshop: Simulation-Based Optimization with Applications (link)
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24-25 April 2026FEM Circus (link)
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10-11 October 20262026 Fall Southeastern Sectional Meeting (link)
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16-20 November 2026SIAM Conference on Mathematics of Data Science (MDS26) (link)
2025
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3-7 Mar 2025SIAM Conference on Computational Science and Engineering (CSE25)
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4-5 Apr 2025Southeast Applied & Computational Math Student Workshop
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8-9 May 2025NSF Comp Math Meeting
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15-16 May 2025DOE EarthShot PI Meeting
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19-22 May 202517th Annual International Conference on Porous Media
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27-31 Jul 2025Modeling and Simulation of Transport Phenomena (MoST)
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26-28 Sep 2025Texas-Louisiana Section of SIAM - 8th Annual Meeting
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7-10 Oct 2025 Main Organizer8th Biot Conference on Poromechanics (BIOT-8)
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14-17 Oct 2025 MS OrganizerSIAM Conference on Mathematical & Computational Issues in the Geosciences (GS25)
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20th Oct 2025Applied Math Seminar
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30th Oct 2025Hydraulic Fracturing Seminar
2024
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12-16 Feb 2024ICERM: Numerical Analysis of Multiphysics Problems
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21 Mar 2024Affiliates Meeting
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23-24 Mar 2024AMS Spring Southeastern Sectional Meeting
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5-7 Apr 2024Southeast Applied & Computational Math Student Workshop
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12 Apr 2024Machine Learning Seminar
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20-21 Apr 2024The Eleventh Graduate Student Conference
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May 2024Visiting
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14 May 2024Seminar
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15 May 2024Seminar, Institut fur Baumechanik und Numerische Mechanik (IBNM)
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16 May 2024Seminar, Institute of Applied Mathematics
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8-12 Jul 2024SIAM Annual Meeting
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15-16 Jul 2024NSF PI Meeting
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21-26 Jul 2024WCCM & PACAM
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11-16 Aug 202411th deal.II Workshop
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19 Sep 2024Yonsei University
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26-27 Sep 2024Kyungpook National University
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11-13 Oct 2024SIAM Texas-Louisiana Section, 7th Annual Meeting
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21-25 Oct 2024SIAM Conference on Mathematics of Data Science (MDS24)
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14 Nov - 3 Dec 2024Technical University of Dortmund