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Welcome to my homepage. I am Dr. G.H.J. Lanel, a  Senior Lecturer in Mathematics of the Department of Mathematics at University of Sri Jayewardenepura (USJP). I joined the Department of Mathematics at USJP in 2010. In addition, I am  an academic counselor for Mathematics  of Faculty of Applied Sciences. Further more I am the Section E1 President of Sri Lanka Association for the Advancement of Science (SLAAS) for the year 2015.

In the wide realm of mathematics, I have developed a special interest in numerical analysis, this is the area in which I have done some research work for my master degree at Sri Jayewardenapura University.

I completed my Ph.D. thesis titled Complex Root Isolation under the supervision of Professor Charles Cheng and graduated from the Oakland University  in Rochester, Michigan in 2009. In my thesis, for a  given square-free polynomial  p, compute exact number of zeros of p in a rectangle R when there is a zero of p on the boundary of R.

My core research interests lie in Computer Algebra (symbolic mathematics), a relatively young area of Mathematics that provides plenty of tools to many scientific areas, such as engineering and physics.

After completing my doctorate, I decided to expand my research interest by working on some problems in Graph Theory (Computational Discrete Mathematics) and Queueing Theory , two of the extensive and popular branches of mathematics, which has been applied to many problems in mathematics, computer science, and other scientific areas.

Dr. G.H.J. Lanel

Contact Information:
Dr. G.H.J. Lanel
Voice: +94 11 2758384
Fax: +94 11 2803470
E-mail: ghjlanel@sjp.ac.lk
Academic Records:
  • Ph.D., Applied Mathematics, 2009, Oakland University, USA
  • M.A., Applied Mathematics, 2006, Oakland University, USA
  • M.Sc.(Merit), Industrial Mathematics, 2002, USJP
  • Certificate Course in Teaching in Higher Education, 2012, USJP
  • B.Sc.(Hons), Mathematics, 1999, OU

Research Interests:

  • Computer Algebra
  • Graph Theory/Computational Discrete Mathematics
  • Queueing Theory

Mathematical Expertise:

  • Algebra/Computer Algebra
  • Graph Theory/Computational Discrete Mathematics
  • Computational Mathematics (Mathematical Software)

Undergraduate Teaching Experiences

  • Graph Theory, Computational Mathematics, Complex Analysis, Numerical Analysis, Algorithms and Complexity, Calculus – Department of Mathematics, USJP.
  • Fluid Mechanics, Department of Mathematics and Statistics, The Open University of Sri Lanka.

Graduate Teaching Experiences

  • Graph Theory and Its Applications, Computational Mathematics, Ordinary Differential Equations- M.Sc. in Industrial Mathematics, USJP

 Recent Publications in Journals

  1.  Ferdinandes, M.G.R.U.K., Pallage, H.K., Lanel, G.H.J. and Angulgamuwa, A.N.K.. An Improved Strategy to Reduce the Passenger Trac at Coastal and Suburban Area Division of Sri Lanka Fort Railway Station Ticketing Counters, International Journal of Information Research and Review (IJIRR), Volume 2, Issue 7, pp. 909-913, July, 2015
  2.  G.K.H. Thondilege, G.H.J. Lanel, P.D.A.G.D. De Almeida. Possibilities of Sharing Multi Species in a Cage Based on Their Food Preference Using Graph Coloring Technique, International Journal of Scientic and Research Publications (IJSRP), Volume 5, Issue 3, ISSN 2250-3153, March 2015
  3.  G.H.J. Lanel, C.C. Cheng. The Number of Complex Roots of a Univariate Polynomial Within a Rectangle, Journal of Mathematics, Statistics and Operations Research (JMSOR), Singapore, Vol.2, No.2, pp. 41, 2014

Academic Positions

  • Present2005

    Senior Lecturer

    Department of Mathematics, University of Sri Jayewardnepura

  • 20102009

    Special Lecturer

    Oakland University, Rochester, Michigan, USA

  • 20092008

    Lecturer

    Oakland University, Rochester, Michigan, USA

  • 20092004

    Teaching Assistant

    Oakland University, Rochester, Michigan, USA

  • 20102009

    Adjunct Faculty

    Oakland Community College, Michigan, USA

  • 20032000

    Instructor

    The Open University, Sri Lanka

Education & Training

  • Ph.D. 2009

    Ph.D., Applied Mathematics

    Oakland University, Rochester, Michigan, USA

  • M.A. 2006

    M.A., Applied Mathematics

    Oakland University, Rochester, Michigan, USA

  • M.Sc. 2002

    M.Sc.(Merit), Industrial Mathematics

    University of Sri Jayewardnepura, Sri Lanka

  • B.Sc. 1999

    B.Sc.(Hons), Mathematics

    The Open University, Sri Lanka

Honors, Awards and Grants

  • SCP 2014
    Presidential Award
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  • 2000-2003
    National Science Foundation Research Grant
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