• 08/2020-07/2022 : Dean of College of Natural Sciences in CNU
  • 03/2014-01/2017 : Dean of Admissions in CNU
  • 08/2011-07/2013 : Department Head of Mathematics in CNU
  • 10/2011-present : Professor of Chonnam National University
  • 09/2008-07/2010 : Vice Dean of College of Natural Sciences in CNU
  • 10/2006-09/2011 : Associate Professor of Chonnam National University
  • 08/2002-09/2006 : Assistant Professor of Chonnam National University
  • 07/2005-07/2006 : Visiting Scientist of NCAR(National Center for Atmospheric Research),
                                 Colorado Boulder, USA
  • 10/2001-08/2002 : Research Assistant Professor, Seoul National University
  • 01/2001-08/2001 : Research Assistant Professor, Ajou University
  • 01/2000-12/2000 : Abroad Post-Doctor at Purdue University supported by KOSEF
  • 09/1999-12/1999 : Post-Doctor of Kyungpook National University
  • 09/1996-08/1999 : Full time researcher of Basic Sciences Research Institution, Ajou University
  • 09/1998-08/1999 : Post-Doctor of Korea Science and Engineering Foundation, Ajou University
  • 06/1997-05/1998 : Post-Doctor of Korea Research Institution, Ajou University


  • Associate Editor(2017.09-2022.12) of Honnam Mathematical Journal
  • Associate Editor(2015.09-2022.08) of Communications of Korean Mathematical Society
  • Associate Editor(2013.01-2014.12) of KSIAM(Korean Society for Industrial and Applied Mathematics)
  • Managing Editor(2011.01-2012.12) of KSIAM
  • Director(2004.12-2008.12) of KSIAM
  • Secretary of East Asia SIAM (2009.01. - 2010.12.)
  • Associate Editor(2004.01-2010.12) of IJISS (International Journal of Information & Systems Sciences)
  • KSIAM (Korean Society of Industrial and Applied Mathematics)
  • Korean Mathematical Society
  • SIAM (Society for Industrial and Applied Mathematics)
  • Honam Mathematical Society

Numerical Methods : Spectral Method, Finite Element Method, Least-Squares Method,
                          Multi-Grid Method, Reduced Order Modeling, Parallel Computing

Scientific Computing : Python, Fortran, Matlab, Maple, Mathematica

Fluid Control Theory : Navier-Stokes Equations, Boussinesq Equations

Artificial Intelligence : Neural Network, Deep Learning, Compute Vision

<Recent Researches on Artifical Intelligence and Image processing>

  1. Reduced-order modeling using the frequency-domain method for parabolic partial differential equations,
    AIMS Mathematics, 8(7), (2023.03.25), 15255-15268 with Seo, J.-K.

  2. Counting of floweres based on K-means clustering and watershed segmentation,
    Journal of KSIAM, 27(2), (2023.06.25), 146-159, with Zhao, Pan

  3. Detection and counting of floweres based on digital images using computer vision and a concave point detection technique,
    Journal of KSIAM, 27(1), (2023.03.25), 37-55, with Zhao, Pan

  4. Choice of an initial guess for Newton's method to solve nonlinear differential equations.
    Computers & Mathematics with Applications, 117 (2022.07.01), 69-73, with Choi, H., Kim, S. D.

  5. 타워크레인의 DX와 Visual AI 기반 안전운영 지원을 위한 AIOps 프로토타입 설계 및 테스트
    (Design and Testing of AIOps Prototype to Support DX of Tower-Cranes Based on Visual-AI Safety Operations) 정보기술융합공학논문지, 12-1, 37-49 (2022.04.) with S.Y. Ahn, B.R. Cha, J.Y. Park, H.Y. Jeong

  6. 학습된 머신러닝의 표류 현상에 관한 고찰
    (A Study on Drift Phenomenon of Trained ML)
    Smart Media Journal, 11-7, 61-69 (2022.06.) with Y.S. Cha, C.Y. Kim, B.R. Cha

  7. Conformable fractional sense of foam drainage equation and construction of its solutions
    J. KSIAM, 25-3, 132-148 (2021.09) with M.T. Darvishi, M. Najafi

  8. Conservative Upwind Correction Method for Scalar Linear Hyperbolic Equations,
    Kyungpook Mathematical Journal, 61-2, 309-322 (2021.06.01) with S.D. Kim, Y.H. Lee

  9. A Posteriori Outlier Rejection Approach Owing to the Well-ordering Property of a Sample Consensus Method for the Stitching of Drone-based Thermal Aerial Images,
    JOURNAL OF IMAGING SCIENCE AND TECHNOLOGY, 65-2, 20504(1-15) (2021.03.01) with Seo, J.-K.

  10. 대용량 분산 Abyss 스토리지의 CDA(Connected Data Architecture) 기반 AI 서비스의 설계 및 활용
    (Design and Utilization of Connected Data Architecture-based AI Serviceof Mass Distributed Abyss Storage) Smart Media Journal, 10-1, 99-107 (2021.03.30) with B. Cha, S. Park, J.H. Seo, J. Kim

  11. 광주광역시의 AI 특화분야를 위한 실용적인 접근 사례 제시
    (Presenting Practical Approaches for AI-specialized Fields in Gwangju Metro-city)
    Smart Media Journal, 10-1, 55-62 (2021.03.30) with B. Cha, Y. Cha, S. Park, J. Kim

  12. Experimental optimal choice of initial candidate inliers of the feature pairs with well-ordering property for the sample consensus method in the stitching of drone-based aerial images,
    KSII Transactions On Internet and Information Systems, 14-4, 1648-1672 (2020.04.30) with Seo, J.-K.

  13. LBS 서비스를 제공하는 전주를 이용한 전기차 충전 플랫폼의 설계 제안
    (Design of Charging Platform for an Electric Vehicle using Electric Pole to support Location-Based Services), Smart Media Journal, 9-1, 67-74 (2020.03.30) with B. Cha, G. Choi, N. Kim, S. Park, J. Kim

  14. Proper orthogonal decomposition of discontinuous solutions with the Gegenbauer post-processing
    J. KSIAM, 23-4, 301-327 (2019.12.25) with J.H. Jung

  15. (Best Poster Award) Concept design of conneted data architecture based AI service,
    World Congress on Artificial Intelligence and Machine Learning, October 24-25, 2019, Valencia, Spain with B. Cha, S. Park, J. Kim

  16. 스마트 제조혁신을 위한보호필름 공정 제조데이터의 활용모델 설계
    (The Design of Application Model using Manufacturing Data in Protection Film Process for Smart Manufacturing Innovation)
    Smart Media Journal, 8-3, 95-103 (2019.09.30) with B. Cha, S. Park, J. Kim

  17. (학술서적) MXNet을 활용한 신경망 학습
    전남대학교 출판 문화원, (2019.02.20) with B. Cha

  18. Abyss Storage Cluster 기반 DataLake Framework의 Connected Data Architecture 개념 설계 및 검증
    Smart Media Journal, 7-3, 57-63 (2018.09.30) with B. Cha, S. Park, J. Kim
      우수논문상, 한국정보기술학회 하계 공동학술대회, 2018. 06. 08

  19. Abyss Storage Cluster 기반의 DataLake Framework의 설계
    Smart Media Journal, 7-1, 9-15 (2018.03.01) with ByungRae Cha, Sun Park, JongWon Kim

<International Mathematical Papers>

  1. Reduced-order modeling using the frequency-domain method for parabolic partial differential equations,
    AIMS Mathematics, 8(7), (2023.03.25), 15255-15268 with Seo, J.-K.

  2. Choice of an initial guess for Newton's method to solve nonlinear differential equations.
    Computers & Mathematics with Applications, 117 (2022.07.01), 69-73. with Choi, H., Kim, S. D.

  3. A Posteriori Outlier Rejection Approach Owing to the Well-ordering Property of a Sample Consensus Method for the Stitching of Drone-based Thermal Aerial Images,
    JOURNAL OF IMAGING SCIENCE AND TECHNOLOGY
        65-2, 20504(1)-20504(15) (2021.03.01) with Jeong-Kwon Seo

  4. Experimental optimal choice of initial candidate inliers of the feature pairs with well-ordering property for the sample consensus method in the stitching of drone-based aerial images,
    KSII Transactions On Internet and Information Systems,
        14-4, 1648-1672 (2020.04.30) with Jeong-Kwon Seo

  5. First order system least squares pseudo-spectral method for Stokes-Darcy equations,
    Applied Numerical Mathematics, 120 (2017), 35-52, 2017. 10. 01 (with P. Hessari )
     
  6. Least-squares spectral method for velocity-vorticity-pressure form of the Stokes equations.
    Numer. Methods Partial Differential Equations 32 (2016), no. 2, 661–680, (with P. Hessari )
     
  7. Analysis of least squares pseudo-spectral method for the interface problem of the Navier-Stokes equations,
        Comput. Math. Appl. 69 (2015), no. 8, 838–851. 2015. 04 (with P. Hessari, B.S. Jang)
     
  8. Numerical solution for elliptic interface problems using spectral element collocation method,
        Abstr. Appl. Anal. 2014, Art. ID 780769, 11 pp. 65N35, 2014. 06 (with P. Hessari, S.D. Kim)
     
  9. Preconditioned spectral collocation method on curved element domains using the Gordon-Hall transformation,
        Bull. Korean Math. Soc. 51 (2014), no. 2, 595–612. , 2014, 03 (with S.D. Kim, P. Hessari)
     
  10. Pseudo-spectral least-squares method for elliptic interface problems,
        J. Korean Math. Soc. 50 (2013), no. 6, 1291–1310. 65N35, 2013. 11.
     
  11. The least-squares pseudo-spectral method for Navier–Stokes equations
      Comput. Math. Appl. 66 (2013), no. 3, 318–329. 65N35 (76D05 76M22) , 2013. 09 (with P. Hessari)
     
  12. A subspace of the DSSY nonconforming quadrilateral finite element space for the Stokes equations.
     J. Comput. Appl. Math. 239 (2013), 220–230,  2013. 02 (with C. Park, D. Sheen)
  13. Spectral collocation and radial basis function methods for one-dimensional interface problems,
          Appl. Numer. Math. 61 (2011), no. 8, 911–928, 2011. 08.  (with J.-H. Jung)

  14. Preconditioned modified AOR method for systems of linear equations,
          Int. J. Numer. Methods Biomed. Eng. 27 (2011), no. 5, 758–769, 2011. 05.
           (with M. Darvishi, P. Hessari)

  15. A comparison of the Newton-Krylov method with high order Newton-like methods to solve nonlinear systems,
          Appl. Math. Comput. 217 (2010), no. 7, 3190-3198, 2010. 12  (with M. Darvishi, C.-H. Kim)

  16. Some exact and new solutions of the Nizhnik-Novikov-Vesselov equation using the Exp-function method
           Comput. Math. Appl. 58 (2009), no. 11-12, 2147-2151, 2009. 12 (with M. Darvishi and A. Barati)
      
  17. Adjoint pseudospectral least-squares methods for an elliptic boundary value problem
           Appl. Numer. Math. 59 (2009), no. 2, 334-348, 2009. 2 (with S.D. Kim)
  18. Application of He’s Parameter-expansion Method to a Nonlinear Self-excited Oscillator System
      International Journal of Nonlinear Science & Numerical Simulation, 10 (2009), no. 1, 135-141,
         2009. 1 (with M. Darvishi and A. Karami)
     
  19. Application of He's parameter-expansion method for oscillators with smooth odd nonlinearities.
           Phys. Lett. A 372 (2008), no. 33, 5381--5384, 2008. 7 (with M. Darvishi and A. Karami)
     
  20. A least-squares/penalty method for distributed optimal control problems for Stokes equations
           Comput. Math. Appl. 53 (2007), no. 11, 1672--1685, 2007. 6 (with Y. Choi and H.-C. Lee)
     
  21. Chebyshev weighted norm least-squares spectral methods for the elliptic problem,
           J. Comput. Math. 24 (2006), no. 4, 451--462, ICMSEC, 2006, 7 (with S.D. Kim)
    　
  22. Newton's method for the Navier-Stokes equations with finite element initial guess of Stokes equations
           Comput. Math. Appl. 51 (2006), no. 5, 805--816, Elsevier, 2006. 3  (with S.D. Kim and Y. H. Lee)
    　
  23. Analysis and computation of least-squares methods for a Compressible Stokes problem,
           Numer. Methods PDE  22 (2006), no. 4, 867--883, Wiley, 2006. 07 (with P. Bochev and S.D. Kim)
    　
  24. Equilibrium states of elastic circular arch with clamped buckling
          Int. J. Inf. Syst. Sci. 2 (2006), no. 3, 354--361, Inst. Sci. Comput. Inform., 2006. 9
    (with J. Go and M. Kwak)
     
  25. Fully discrete approximation of a velocity and temperature tracking problem for the Boussinesq equations with piecewise distributed controls,
           Math. Meth. Appl. Sci. 28 (2005), no. 16, 1977--2006, John Wiley & Sons, 2005. 11 (with H.-C. Lee)

  26. Least-squares spectral collocation methods for the Stokes equations
           Numer. Meth. PDE 20 (2004), no. 1, 128--139, Wiley, 2004. 01 (with  S.D. Kim and H.-C. Lee)
    　
  27. Pseudo-spectral least-squares method for the second-order elliptic boundary value problem,
           SIAM J. Numer. Anal. 41 (2003), no. 4, 1370--1387, SIAM, 2003. 9 (with S.D. Kim and H.-C. Lee)
    　
  28. Discrete minus one norm least-squares for the stress formulation of linear elasticity
    with numerical results,
            J. Comput. Math. 21 (2003), no. 6, 689--702, ICMSEC, 2003. 11, (with  S.D. Kim, S. Kim, G. Woo)
     
  29. Explicit bounds of eigenvalues for stiffness matrices by quadratic hierarchical basis method
           J. Comput. Math. 21 (2003), no. 2, 113--124, ICMSEC, 2003. 3, (with S.D. Kim)
  30. Dynamics for controlled 2-D Boussinesq Systems with distributed controls, 
           J. Math. Anal. Appl. 273 (2002), no. 2, 457--479, Academic Press, 2002. 11, (with H-C. Lee)  
  31. Preconditioning C^1 Lagrange polynomial spline collocation method of elliptic equations, 
          Appl. Math. Comput. 132 (2002), no. 2-3, 599--616, Elsevier Sciences, 2002. 09, (with S. D. Kim) 
  32. The discrete first-order system least-squares: the second-order elliptic boundary value problem
           SIAM J. Numer. Anal. 40 (2002), no. 1, 307--318, SIAM, 2002. 05 (with Z. Cai)
  33. H^{-1} least-squares methods for the velocity-pressure-stress formulation of Stokes equations, 
          Appl. Numer. Math. 40 (2002), no. 4, 451--465, Elsevier Sciences, 2002. 03 (with S. D. Kim)
  34. Solution Methods for the Poisson equation with corner singularities : Numerical results
          SIAM J. Sci. Comput. 23 (2001), no. 2, 672--682, SIAM, 2001. 08  (with Z. Cai, S. Kim)
  35.  Dynamics for linear feedback controlled two-dimensional Benard equations with distributed controls , 
          Appl. Math. Optim. 44 (2001), no. 2, 163--175,  Springer-Verlag, 2001. 07 (with H-C. Lee)
     
  36. Piecewise optimal distributed controls for Boussinesq equations, 
          Math. Methods Appl. Sci. 23 (2000), no. 3, 227--254, John Wiley & Sons, 2000. 10 (with H.-C. Lee)
     
  37. On the exponential decay of C^1 cubic Lagrange splines on non-uniform meshes and non-uniform
       data points,     Houston J. Math. 24 (1998), no. 1, 173--183, 1998. 03 (with S.D. Kim)  
     
  38. Preconditioning cubic collocation method for elliptic equations, 
    Hokkaido Math. J. 26 (1997), no. 3, 597--610, 1997. 10 (with S.H. Lee)

  39. A formula for eigenpairs of certain symmetric tridiagonal matrices,
          Bull. Austral. Math. Soc. 55 (1997), no. 2, 249--254, 1997. 04.



    <Domestic Mathematical Papers>

  40. Counting of floweres based on K-means clustering and watershed segmentation,
    Journal of KSIAM, 27(2), (2023.06.25), 146-159, with Zhao, Pan

  41. Detection and counting of floweres based on digital images using computer vision and a concave point detection technique,
    Journal of KSIAM, 27(1), (2023.03.25), 37-55, with Zhao, Pan

  42. Conformable fractional sense of foam drainage equation and construction of its solutions
    J. KSIAM, 25-3, 132-148 (2021.09) with M.T. Darvishi, M. Najafi

  43. Conservative Upwind Correction Method for Scalar Linear Hyperbolic Equations,
    Kyungpook Mathematical Journal, 61-2, 309-322 (2021.06.01) with S.D. Kim, Y.H. Lee

  44. Proper orthogonal decomposition of discontinuous solutions with the Gegenbauer post-processing
    J. KSIAM, 23-4, 301-327 (2019.12.25) with J.H. Jung

  45. Least-squares spectral collocation parallel methods for parabolic problems.
     Honam Math. J.     37 (2015), no. 3, 299–315, 2015, 09, 01,  (with J.K. Seo)
     
  46. Numerical solutions of Burgers equation by reduced-order modeling based on pseudo-spectral collocation method.
     J. Korean Soc. Ind. Appl. Math.     19 (2015), no. 2, 123–135, 2015. 06. 25 (with J.K. Seo)
     
  47. HIGH-ORDER NEWTON-KRYLOV METHODS TO SOLVE SYSTEMS OF NONLINEAR EQUATIONS
          J. Korean Soc. Ind. Appl. Math. 15 (2011), no. 1, 19–30, 2011. 03. 25, (with M. Darvishi)

  48. Preconditioning cubic spline collocation methods for a coupled elliptic equation,
          Kyungpook Math. J. 50 (2010), no. 3, 419?431, 2010. 09. 30 (with S.D. Kim)

  49. Convergence analysis of preconditioned AOR iterative method,
         Honam Math. J. 32 (2010), no. 3, 399?412, 2010. 10. (with P. Hessari, M. Darvishi)

  50. The process of the development of hypoxia in an abnormal blood flow. 
          Honam Math. J. 30 (2008), no. 1, 75?89, 2008. 2, (with M. Kwak and J. Go)
     
  51. Analysis of first-order system least-squares for the optimal control problems for the Navier-Stokes
      Equations,  Journal of KSIAM  Vol. 11-4, 55-68, 2007. 12
     
  52. Negative norm least-squares spectral methods for the elliptic problem,
       Journal of KSIAM Vol. 10-1, 71-82, 2006. 06.
     
  53. Finite element approximation of the discrete first-order system least squares for elliptic problems,
         Commun. Korean Math. Soc. 20 (2005), no. 3, 563?578, 2005. 08.
     
  54. First-order system least-squares methods for partial differential equations,
      Trends in Mathematics, Vol. 8-2, 43-38, 2005. 12

  55. Convergence of the C^1 Lagrange polynomial spline interpolation
         Kyungpook Math. J. 42 (2002), no. 1, 111?120, 2002. 06 (with S.D. Kim, S.H. Kim)
    　
  56. Exponential decay of C^1 Lagrange polynomial splines w.r.t Chebyshev-Gauss points
         Commun. Korean Math. Soc. 16 (2001), no. 1, 153?161, (with H-W. Song)
     
  57. On convergence of the C^1 cubic Lagrange spline interpolation, 
         Kyungpook Math. J. 39 (1999), no. 2, 379?387, 1999. 10 (with Y.H. Lee)
     
  58. First-Order System Least Squares for Stokes equation in a velocity-pressure-stress formulation
     Proceeding of the 19th Daewoo Workshop, July 20-24, 1999  
     
  59. Exponential decay of C^1 quadratic Lagrange spline and its applications,
          Kyungpook Math. J. 36 (1996), no. 2, 313?321, 1996. 10 (with T. Y. Choi, S. D. Kim) 
     
  60. C^1 bicubic spline interpolation on an irregular mesh, 
      Commun. Korean Math. Soc. 11 (1996), no. 2, 525?538, 1996. 10.  
     
    　

  1. LaTeX2e 길라잡이,  2004. 1.  with 최근배
     
  2. 수치행렬해석, 2012. 03. 05,  with 김상동, 김필수, 신병춘, 이용훈

  3. MXNet을 활용한 신경망 학습, 2019. 02. 20, with 차병래

    

  1. Concept Design of Connected Data Architecture based AI Service
        World Congress on Artificial Intelligence and Machine Learning(Conference era),
        2019. 10. 24, Spain with B. Cha
     
  2. Draft Design of Li-Fi Based Acquisition Layer of DataLake Framework for IIoT and Smart Factory
        International Confeerence on Network-Based Information Systems,
        2019. 09. 06, Oita University, Japan with B. Cha
     
  3. Drone-scan image processing based on optimal registration with minimal feature points
        International Multi-Conference on Engineering and technology Innovation 2018(IMETI 2018),
        2018. 11. 02, Taoyuan, Taiwan with J. Seo
     
  4. Draft Design of Distributed Ledger Based Peer-to-Peer Business Platform
        12th International Conference on Complex, Intelligent, and Software,
        2018. 07. 05, Matsue, Japan with B. Cha
     
  5. Concept Design on Over-The-Air Download for Industrial IoT-based Farming
        2018 International Conference on Future Information & Communication Engineering,
        2018. 06. 30, Pattaya, Thailand with B. Cha
     
  6. Concept Design of Drone-based Image Processing Platform
        제28회 통신정보 합동학술대회, 2018. 05. 04, 여수 with J. Seo
     
  7. Artificial neural network using numerical analysis
        2018 KMJ Conference, 2018. 01. 08, Kyungpook N. University
     
  8. Idea Sketch to Improvement Image Learning based on M achine Learning using Topology Theory
        The international conference on smart media & applications,
        2017. 12. 17, Philippines with B. Cha
     
  9. Spectral least-squares collocation methods for elliptic interface problems
       International Conference on Boundary and Interior Layers Proceeding, Pohang, Korea
          2012. 02. 08  with P. Hessari
     
  10. Pseudo-spectral least-squares method for elliptic interface problems
       KSIAM 2011 Annual Meeting, 2011. 11. 25
     
  11. REDUCED ORDER MODELING WITH PSEUDOSPECTRAL ELEMENT
       KSIAM 2009 Annual Meeting, PyungChang, Korea, 2009. 11. 27, with J.K. Seo
     
  12. Preconditioning spectral element collocation method on the domain with curved element
       KSIAM 2009 Annual Meeting, PyungChang, Korea, 2009. 11. 27, with P. Hessari
     
  13. Convergence analysis of preconditioned AOR iterative method
      KSIAM 2009 Annual Meeting , PyungChang, Korea, 2009. 11. 27, with P. Hessari
     
  14. Reduced order modeling of spectral element method for partial differential equations
       The 5th East Asia SIAM Conference, Brunei, 2009. 06. 08
     
  15. Reduced order spectral element method for PDE
            KMS 2009 Spring Meeting , 2009. 04. 25
     
  16. Spectral element approximation for partial differential equations with interfaces
       Proceeding of The Second China-Japan-Korea Conference on Numerical Mathematics,
        Weihai, China, 2008. 08. 28
     
  17. Numerical Methods for Computations
           08 Geomath Winter School Program , 2008. 02. 25
     
  18. Negative norm spectral collocation least squares method for Stokes equation
        KSIAM 2012 Spring Conference, 2012. 05. 18
     
  19. Optimal Control theory and method for interdisciplinary mission
        NIMS, Daejeon, 2007. 12. 7
     
  20. Parallel computation for parabolic equations using first-order system least-squares method
        Proceeding of KSIAM Annual Meeting 2007, HongSung, 2007. 11. 23
     
  21. Pseudo Spectral Least-Squares Methods for Interface Problem
        2007 International Workshop on Nonlinear Analysis, Busan N. Univ., 2007. 7. 23
     
  22. Spectral Least-squares Methods for Interface problems and AMG
        JNU MATH 2007 Workshop and Summer School, 2007. 6. 29
     
  23. Spectral Least-squares Methods for Interface problems
        Proceedings of International Conference On Spectral and High Order Methods, China, 2007. 6. 19
     
  24. Introduction of Numerical Methods
        08 Geomath Winter School Program, Chonnam National University, 2007. 2. 25
     
  25. First-order system least-squares mixed finite element methods using Raviart-Thomas space RT0
       KSIAM 2006 Annual Meeting and Conference, Kunkook Univ., 2006. 11. 24
  26. Pseudospectral least-squares method for the second-order elliptic boundary value problem
      The 5th Changwon International Symposium on Advanced Science and Technology,
        Changwon Nat'l. Univ., 2006. 10.26
  27. Least-squares mixed methods for partial differential equations
       Workshop of National Institute for Mathematical Sciences on Scientific Computation and Numerical
       Computation for Interdisciplinary Mission,  NIMS, 2006. 8. 23
     
  28. Least-squares mixed methods using RT0*P1 space for elliptic boundary value problems
      The first China-Japan-Korea Joint Conference on Numerical Mathematics,
       Sapporo Japan, 2006. 8. 3
     
  29. Least squares spectral element and collocation method for elliptic problems
       The 3rd Joint Chinese-Korean Workshop, Jeju, Feb. 22-27, 2005
    　
  30. Pseudo-spectral minus one-norm least-squares methods for elliptic problem,
      The 13th Applied Mathematics Forum, Gyungju, Aug. 16-17, 2004(with S.D. Kim)
  31. Discrete minus one-norm spectral least-squares methods for the Stokes equations,
      International conference on Complex systems, Control and Optimizations,
       Northeastern University, Shenyang, China, Aug. 8-10, 2004
  32. Least-squares methods for optimal control problems for Stokes equations,
      International conference on spectral and high order methods(ICOSAHOM),
       Brown University, USA, June. 21-25, 2004 (with S.D. Kim*)
  33. Pseudospectral discrete minus one-norm least-squares method for the elliptic problem,
      International conference on spectral and high order methods(ICOSAHOM),
       Brown University, USA, June. 21-25, 2004 (with S.D. Kim*)
  34. First-order system spectral least-squares methods for stokes equations,
      Com2Mac International Conference, Kyungju, Dec. 9-12, 2003.
  35. Preconditiona polynomial spline collocation methods,
      A workshop for numerical analysis in honor of Sang Hun Lee
      on the occasion of his 60th birthday, Kyungpoo University, Oct. 11, 2003
    　
  36. A least-squares method of optimal control problem for Stokes equations
      The 11th Applied Mathematics Forum, Mujoo, Aug. 25-26, 2003(with H. Lee, Y. Choi)
  37. Pseudo-spectral least-squares method for elliptic problems,
        The second Chinese-Korean Joint Workshop, Peking University, Feb. 25-28, 2003.
    　
  38. Pseudo-Spectral Least-Squares Methods,
      The tenth Applied Mathematics Forum, Suanbo, Feb. 17-18, 2003(with S.D. Kim*)
     
  39. Discrete Least-Squares Methods for the second-order partial differential equations,
      Com2Mac International Conference, Pohang-Kyungju, July. 2-5, 2001 (with S. D. Kim)
     
  40. Solution Methods for the Poisson equation with corner singularities : Numerical results
      Com2Mac International Conference, Pohang-Kyungju, July. 2-5, 2001 (with Z. Cai, S. Kim*)
  41.  First-order system least-squares methods for the compressible Stokes equations
      Com2Mac International Conference, Pohang-Kyungju, July. 2-5, 2001 (with S. D. Kim*)
     
  42. Discrete Least-Squares Methods for Elliptic Equations,
      The senventh Applied Mathematics Forum, Suanbo, Jan. 7-9, 2001
     
  43. First-Order System Least Squares for elasticity with a stress formulation
      Seminar of Applied Mathematics, Purdue University, Jim. Douglas Jr., April 10, 2000
     
  44. First-Order System Least Squares for Stokes equation in a velocity-pressure-stress formulation
     The 19th Daewoo Workshop, POSTEC,July 20-24, 1999
     
  45. Error bounds on C^1 Lagrange polynomial spline interpolation
     The forth Applied Mathematics Forum, Jungeub, Apr 19-20, 1999
      Hierarchical P_2 finite element space on the multi-levels: 1D,
       The third Applied Mathematics Forum, Sokcho, Oct 18-19, 1998
     
  46. Dynamics for controlled Boussinesq systems with distributed controls
       The second Applied Mathematics Forum, Kyungju, Apr 20-21, 1998
     
  47. Dynamics for linear feedback controlled Boussinesq systems
       The first Applied Mathematics Forum, Sokcho, Oct 13-14, 1997
     
  48. Preconditioning collocation method for elliptic equations
       The Taegu-Kyungpook workshop of Korea Math. Soc., Sep 14, 1996
     
  49. On C1 cubic Lagrange splines vanishing at local unsymmetric interior points in a nonuniform mesh, 
       The Spring workshop of Korean Math. Soc., Apr 26-27, 1996

  

 [2004년 2학기]
* 프로그래밍 언어 2 (전공)
* 수치해석학 (수학교육학과 전공)
* 수치해석학 2 (대학원)

 [2004년 1학기]
* 프로그래밍 언어 1 (전공)
* 수치해석학 1 (전공)
* 수치해석학 1 (대학원)

 [2003년 2학기]
* 프로그래밍 언어 2 (전공)
* 미분방정식 2 (전공)

 [2003년 1학기]
* 프로그래밍 언어 1 (전공)
* 수치해석학 1 (전공)
* 선형대수이론 (대학원)

[2002년 2학기]
* 편미분방정식 (전공)
* 수치해석학 2 (전공)
* 응용수학 (토목공학과)