Engineering Experts

Krishnaiyan Thulasiraman

Department of Electrical and Computer Engineering
Cyprus University of Technology


Krishnaiyan Thulasiraman received the Bachelor’s degree (1963) and Master’s degree (1965) in Electrical Engineering from the University of Madras, India, and the Ph.D. degree (1968) in Electrical Engineering from IIT, Madras, India. He holds the Hitachi Chair and is Professor in the School of Computer Science at the University of Oklahoma, Norman, where he has been since 1994. Prior to joining the University of Oklahoma, Thulasiraman was professor (1981-1994) and chair (1993-1994) of the ECE Department in Concordia University, Montreal. He was on the faculty in the EE and CS departments of the IIT during 1965-1981. Dr. Thulasiraman’s research interests have been in graph theory, combinatorial optimization, algorithms and applications in a variety of areas in CS and EE: electrical networks, VLSI physical design, systems level testing, communication protocol testing, parallel/distributed computing, telecommunication network planning, fault tolerance in optical networks, interconnection networks etc. He has published extensively in archival journals, coauthored with M. N. S. Swamy two text books “Graphs, Networks, and Algorithms” (1981) and “Graphs: Theory and Algorithms” (1992), both published by Wiley Inter-Science, and authored two chapters in the Handbook of Circuits and Filters (CRC and IEEE, 1995) and a chapter on “Graphs and Vector Spaces” for the handbook of Graph Theory and Applications (CRC Press, 2003). Dr. Thulasiraman has received several awards and honors: 2006 IEEE Circuits and Systems Society Technical Achievement Award. Endowed Gopalakrishnan Chair Professorship in CS at IIT, Madras (Summer 2005), Elected Member of the European Academy of Sciences (2002), IEEE CAS Society Golden Jubilee Medal (1999), Fellow of the IEEE (1990) and Senior Research Fellowship of the Japan Society for Promotion of Science (1988). He has held visiting positions at the Tokyo Institute of Technology, University of Karlsruhe, University of Illinois at Urbana-Champaign and Chuo University, Tokyo. Dr. Thulasiraman has been Vice President (Administration) of the IEEE CAS Society (1998, 1999), Technical Program Chair of ISCAS (1993, 1999), Deputy Editor-in-Chief of the IEEE Transactions on Circuits and Systems I ( 2004-2005), Co-Guest Editor of a special issue on "Computational Graph Theory: Algorithms and Applications" (IEEE Transactions on CAS , March 1988), , Associate Editor of the IEEE Transactions on CAS (1989-91, 1999-2001), and Founding Regional Editor of the Journal of Circuits, Systems, and Computers. Recently, he founded the Technical Committee on “Graph theory and Computing” of the IEEE CAS Society and has been a founding member of the editorial board of the AKCE International Journal of Graphs and Combinatorics.

Research Interest

Applied Mathematics Graph Theory and Algorithms Fault Diagnosis, Testing, and Tolerance Telecommunication Networks Parallel/Distributed Computing VLSI Circuits and Systems


  • K. Thulairaman, Min Xu, Ying Xiao and Xiaodong Hu, "Vertex Identifying Codes for Fault Isolation in Communication Networks", Proceedings of the International Conference on Discrete Mathematics and Applications (ICDM 2006), Bangalore, December 2006.

  • Min Xu, Krishnaiyan Thulasiraman and Xiao-Dong Hu, “Identifying Codes of Cycles of Odd orders” European Journal of Combinatorics, February 2008, pp.1717-1720

  • Guoliang Xue, Weiyi Zhang, Tie Wang, and Krishnaiyan Thulasiraman ," On the Partial path Protection Scheme for WDM Optical Networks and Polynomial Time Computability of Primary and Secondary Paths ", Journal of Industrial and Management Optimization, Vol. 3, No. 4, Nov. 2007.

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