
Dr Ng Kah Loon Senior Lecturer, Department
of Mathematics, NUS Director, Science IT Unit, Faculty of Science, NUS Resident Fellow and Domestic Bursar, Kent Ridge Hall, NUS Contact information: S170720 matngkl@nus.edu.sg / scingkl@nus.edu.sg (65)65162751 
Teaching:
Modules taught in the past:
MA1101R (Linear Algebra I)
MA1508 (Linear Algebra with
Applications)
MA2214 (Combinatorial
Analysis)
MA3233 (Algorithmic Graph
Theory)
Module currently teaching
(Semester 2, AY2012/13):
MA2214 (Combinatorial
Analysis)
Teaching awards: I have received teaching
awards at both the Faculty (Faculty Teaching Excellence Award, Honor Roll) and
University (Annual Teaching Excellence Award) level.
Administrative Service: The following are the
administrative appointments that I have held in the past or are currently
holding:
Coordinator, SM2/SM3 Program, Faculty of Science (July 2010 – December 2011)
Director, Science IT Unit, Faculty of Science (January 2012 – Present)
Member,
Young Educators in Science (YES) Steering Committee (September 2011 –
Present)
Member,
Task Force for ITEnhanced Learning, Faculty of Science (July 2012 –
Present)
Resident Fellow, Kent Ridge Hall (January
2010 – Present)
Domestic Bursar, Kent Ridge Hall (February
2011 – Present)
Member, Executive Committee,
Singapore Mathematical Society (2008)
Assistant
Secretary,
Singapore Mathematical Society (2009)
Honorary
Secretary,
Singapore Mathematical Society (2010 – Present)
Research: My research interest is in Graph Theory and its
application to Social Sciences and Life Sciences. My current research topics
include (i) the game of cops and robbers on a graph
(ii) the firefighter problem on a graph; (iii) domination theory in graphs; (iv) voting problems on a graph.
Selected publications:
1) (With K.M. Koh)
The orientation number of two complete graphs with linkages, Discrete
Mathematics, 295 (2005): 91106.
2) (With K.M. Koh)
On optimal orientation of cycle vertex multiplications, Discrete Mathematics, 297 (2005):
104118.
3) (With N. Fefferman)
The role of individual choice in the evolution of social complexity, Annales Zoologici Fennici, 44
(2007): 5869.
4) Plasticity in individual choice in social
network evolution, Annales Zoologici Fennici, 45 (2007): 441448.
5) (With N. Fefferman)
How disease models in static networks can fail to approximate disease in
dynamic networks, Physical Review E, 76 (2007), 0341033.
6) On a conjecture concerning the
orientation number of a graph, Discrete Mathematics, 309 (2008): 16031610.
7) (With P. Raff) A generalization of the
firefighter problem on ZxZ, Discrete Applied Mathematics, 156(5)
(2008): 730745.
8) (With K. Hock and N. Fefferman)
Systems approach to studying animal sociality: individual position versus group
organization in dynamic social networks, PLoS ONE,
5(12) (2010), 0473305.