Contact Information
University of Oslo
Department of Mathematics
P.O. Box 1053, Blindern
0316, Oslo, Norway
Phone : +47 22 85 56 91
E-mail : jeonghul@math.uio.no
homepage : http://folk.uio.no/~jeonghul
Research Interests
Finite Element Methods (mixed and discontinuous Galerkin methods), Scientific Computing
(preconditioning and fast iterative solvers), Computational Mechanics (complex materials)
Education
University of Minnesota , Minneapolis, Minnesota USA
Ph.D., Mathematics, September 2005 – July 2012
Advisor : Douglas N. Arnold
Seoul National University , Seoul, Republic of Korea (South Korea)
M.S., Mathematics, March 2000 – December 2002
Seoul National University , Seoul, Republic of Korea
B.S., Mathematics Education, March 1996 – December 1999
Employment
Postdoctoral researcher, University of Oslo, Norway, (supervisor : Ragnar Winther)
July 2014 – present
Postdoctoral researcher, Aalto University, Finland, (supervisor : Rolf Stenberg)
August 2012 – June 2014
Research assistant, University of Minnesota, USA,
Teaching assistant, University of Minnesota, USA,
Lecturer, Korea Air Force Academy, South Korea,
Instructor, Korea Air Force Academy, South Korea,
January 2011 – May 2012
July 2005 – December 2010
July 2003 – June 2005
August 2002 – June 2004
Teaching assistant, Seoul National University, South Korea, March 2000 – December 2001

Honors and Awards
Graduate Student Fellowship, University of Minnesota, 2005 Fall - 2007 Spring
BK21 scholarship, Seoul National University, 2001
Bronze Prize, 18th University Students Contest of Mathematics, The Korean Mathematical
Society, 1999
Publications
Dissertation
Mixed methods with weak symmetry for time dependent problems in elasticity and viscoelasticity .
Journal Articles and Preprints
• (with Mika Juntunen) Optimal second order rectangular elasticity elements with weakly symmetric stress , BIT Numerical Mathematics, 54, no. 2 (2014), pp. 425-445, (online link).
• (with Mika Juntunen) A mesh-dependent norm analysis of low order mixed finite element for elasticity with weakly symmetric stress , Mathematical Models and Methods in Applied
Sciences, 24, no. 11, (2014), pp. 2155-2169, (online link).
• (with James Colliander and Magdalena Czubak) Interaction Morawetz estimate for the magnetic Schr¨ , Advances in Differential Equations, 19, no. 9/10 (2014), pp. 805-832, (online link).
• (with Douglas N. Arnold) Mixed methods for elastodynamics with weak symmetry , SIAM
Journal on Numerical Analysis, 52, no. 6, (2014), pp. 2743-2769, (online link).
• (with Hyea Hyun Kim) Analysis of a staggered discontinuous Galerkin method for linear elasticity , Journal of Scientific Computing, 66, no. 2, (2016), pp. 625-649, (online link)
• Towards a unified analysis of mixed methods for elasticity with weakly symmetric stress ,
Advances in Computational Mathematics, 42, no. 2, (2016), pp. 361-376, (online link).
• Robust error analysis of coupled mixed methods for Biot’s consolidation model , Journal of
Scientific Computing, To appear, (online link).
• (with Kent-Andre Mardal and Ragnar Winther) Parameter-robust discretization and preconditioning of Biot’s consolidation model , in revision, (ArXiv).
• Analysis of mixed finite element methods for standard linear solid model in viscoelasticity , in revision.
• (with Ragnar Winther) Local codifferentials and approximation of Hodge Laplace problems , preprint.
• Remarks on error analysis of finite element methods for Biot’s consolidation model , preprint.
Projects in progress
• (with Stephen Shannon, John Shadid, Tan Bui-Thanh) Construction and analysis of hybridized discontinuous Galerkin methods for incompressible magnetohydrodynamics equation , in preparation.
• (with Trygve Bærland) Parameter-robust finite element methods for interaction of incompressible fluids and poroelastic structures , in preparation.

• (with Rolf Stenberg) A posteriori error estimator of mixed finite elements for linear elasticity , in preparation.
• (with Kent-Andre Mardal, Marie E. Rognes, Eleonora Piersanti) Simulations of multiple network poroelastic modelling with applications to interstitial fluid flow in the human brain , in preparation.
Conference Proceedings
• (with D. N. Arnold) Mixed methods for viscoelastic solids with weak symmetry elements ,
Proceedings of the 25th Nordic Seminar on Computational Mechanics, 2012.
• Robust finite element methods for Biot’s consolidation model , Proceedings of the 26th
Nordic Seminar on Computational Mechanics, 2013.
• (with M. Juntunen) Mesh dependent norm analysis of a simple rectangular elasticity element with weakly symmetric stress , Proceedings of the 26th Nordic Seminar on Computational
Mechanics, 2013.
Professional and Research Activities
Workshop/Conference Organization
• Co-organizer of the workshop
Complex Materials: Mathematical Models and Numerical Methods
June 2015, University of Oslo, Norway.
• Co-organizer of mini-symposium
Discontinuous Galerkin Methods: New Trends and Applications in the 12th World Congress on Computational Mechanics, July 2016, Seoul, South Korea.
Research Visiting
• Kyunghee University, Yong-in, South Korea
June 11, 2014 – June 19, 2014
(Host: Hyea Hyun Kim)
• Kyunghee University, Yong-in, South Korea
September 14, 2015 – September 19, 2015
(Host: Hyea Hyun Kim)
• Institute for Computational Engineering and Sciences, Austin, US (in the support of J.
Tinsley Oden Faculty Fellowship)
January 25, 2016 – February 6, 2016
(Host: Tan Bui-Thanh)
Talks & Presentations
• Mixed methods for linear elastodynamics with weak symmetry elements , Finite Element Circus,
University of Connecticut, October, 2011
• Mixed finite element methods for dynamic elasticity and viscoelasticity , Seoul National University, Seoul, South Korea, August, 2012
• Mixed finite element methods for dynamic elasticity and viscoelasticity using weak symmetry elements , National Institute for Mathematical Sciences, Dae-jeon, South Korea, August, 2012

• Mixed finite element methods for dynamic elasticity and viscoelasticity using weak symmetry elements , Korea Advanced Institute of Science and Technology, Dae-jeon, South Korea,
August, 2012
• Mixed methods for viscoelastic solids with weak symmetry elements , Proceedings of the 25th
Nordic Seminar on Computational Mechanics, Lund University, Lund, Sweden, October, 2012
• Rectangular mixed finite elements for elasticity with weak symmetry , Seminar on Numerical
Analysis and Computational Science, Aalto University, Espoo, Finland, February, 2013
• Rectangular mixed finite elements for elasticity with weak symmetry , Seminar on Mathematical
2013
• A robust finite element method for Biot’s consolidation model in poroelasticity , Kyunghee
University, Yong-in, South Korea, July, 2013
• A robust coupling of nonconforming and mixed finite element methods for Biot’s consolidation model , The Asian Mathematical Conference 2013, Busan, South Korea, July, 2013
• Rectangular mixed finite elements for elasticity with weak symmetry , Kangwon National
University, Chun-cheon, South Korea, July, 2013
• A robust coupling of nonconforming and mixed finite elements for Biot’s consolidation model ,
National Institute for Mathematical Sciences, Dae-jeon, South Korea, July, 2013
• Hodge Laplacian with Robin boundary conditions , ENUMATH 2013, EPFL, Lausanne, Switzerland, August, 2013
• Robust finite element methods for Biot’s consolidation model , Proceedings of the 26th Nordic
Seminar on Computational Mechanics, University of Oslo, Oslo, Norway, October, 2013
• A new analysis of simple mixed finite elements for elasticity with weakly symmetric stress ,
Korean Society of Industrial and Applied Mathematics Annual Conference, Seogwipo KAL hotel, Jeju, South Korea, November, 2013
• On unified analysis of mixed methods for elasticity with weakly symmetric stress , PDE Seminar,
University of Oslo, Norway, February, 2014
• Unified analysis of mixed methods for elasticity with weakly symmetric stress , The 12th
European Finite Element Fair, University of Vienna, Vienna, May, 2014
• On unified analysis of mixed methods for elasticity with weakly symmetric stress , Applied
Mathematics Seminar, KAIST, Daejeon, South Korea, June, 2014
• On unified analysis of mixed methods for elasticity with weakly symmetric stress , Computational Mathematics Seminar, Seoul National University, Seoul, South Korea, June, 2014
• Robust discretization and preconditioning of Biot’s model , Robust Discretizations for Elasticity and Poroelasticity Workshop, Finse, Norway, February, 2015
• Parameter-robust discretization and preconditioning of poroelasticity , Applied Mathematics and Mechanics Seminar, Aalto University, Helsinki, Finland, March, 2015
• Parameter-robust discretization and preconditioning of poroelasticity , PDE Seminar, University of Oslo, Oslo, Norway, April, 2015
• Parameter-robust discretization and preconditioning of Biot’s consolidation model , Poster presentation, FEniCS ’15, Imperial College London, London, UK, June, 2015
• Parameter-robust preconditioning for systems of partial differential equations , Numerical Analysis
Seminar, Seoul National University, Seoul, South Korea, September, 2015
• Hybridized discontinuous Galerkin methods for incompressible magnetohydrodynamics equations ,
ICES Seminar, Institute for Computational Engineering and Sciences, Austin, US, February,
2016
• Parameter-robust discretization and preconditioning for poroelasticity , Differential Equations and Applied Mathematics Seminar, Texas State University, San Marcos, US, February, 2016
• Construction and analysis of hybridized discontinuous Galerkin methods for incompressible magnetohydrodynamics equations , 27th Nordic Congress of Mathematicians, Stockholm University,
Stockholm, Sweden, March, 2016
Teaching Experiences

Department of Mathematics and Systems Analysis, Aalto University August, 2012 -
June, 2014
Lecturer :
• Topics in Numerical Analysis – mixed finite element methods (graduate level, Fall 2013)
School of Mathematics, University of Minnesota
Teaching Assistant :
• Precalculus 1
• Calculus 1 & 2
• Differential Equations & Linear Algebra
• Multivariable Calculus
Grader :
• Real Analysis 1 & 2 (graduate level)
• Topics in Partial Differential Equations (graduate level)
• Partial Differential Equations 1 & 2 (undergraduate level)
September, 2005 - December, 2010
Department of Mathematics, Korea Air Force Academy
Lecturer :
August, 2002 - June, 2005
• College Mathematics
• Calculus 1 & 2
• Linear Algebra
• Engineering Mathematics (includes Differential Equations, Fourier Analysis, Vector Calculus)
Department of Mathematics, Seoul National University March, 2000 - December, 2002
Teaching Assistant :
• Calculus 1 & 2
Computer Skills
• Languages : Python, Matlab
• Mathematics Packages : Mathematica, FEniCS (Automated Finite Element Package)
• Office : L TEX, Beamer, OpenOffice
• Operating Systems : Unix/Linux, Mac OS, Windows
Language Abilities
• English (fluent), Korean (native)