Peter G. Harrison

Peter George Harrison (born 1951) is a Professor of Computing Science at Imperial College London[3] known for the reversed compound agent theorem, which gives conditions for a stochastic network to have a product-form solution.

Peter Harrison
Born1951 (age 6768)
ResidenceLondon, UK
Alma materUniversity of Cambridge
Imperial College London
Known forRCAT
AwardsMayhew Prize (1973)
Scientific career
Fieldsperformance analysis
InstitutionsImperial College London
ThesisRepresentative Queueing Network Models of Computer Systems in Terms of Time Delay Probability Distributions (1979)
Doctoral advisorMeir M. Lehman[2]
Doctoral studentsEdwige Pitel

Harrison attended Christ's College, Cambridge, where he was a Wrangler in Mathematics (1972) and gained a Distinction in Part III of the Mathematical Tripos (1973), winning the Mayhew Prize for Applied Mathematics.[4]

After spending two years in industry, Harrison moved to Imperial College, London where he has worked since, obtaining his Ph.D. in Computing Science in 1979 with a thesis titled "Representative queueing network models of computer systems in terms of time delay probability distributions" and lecturing since 1983.[5]

Current research interests include parallel algorithms, performance engineering, queueing theory, stochastic models and stochastic process algebra, particularly the application of RCAT to find product-form solutions.[6]

Harrison has coauthored two books, Functional Programming with Tony Field,[7] and Performance Modelling of Communication Networks and Computer Architectures with Naresh Patel[8] and published over 150 papers.[9]

Harrison is an associate editor of The Computer Journal.[10]

Via Saharon Shelah and Dov Gabbay, Harrison has an Erdős number of 3.[11]


  1. Harrison, Peter G. (1986). "An Enhanced Approximation by Pair-Wise Analysis of Servers for Time Delay Distributions in Queueing Networks". IEEE Transactions on Computers. Institute of Electrical and Electronics Engineers. 35 (1 (January)): 54–61. doi:10.1109/TC.1986.1676657. Retrieved 5 April 2009.
  2. Peter G. Harrison at the Mathematics Genealogy Project
  3. "Harrison's Personal Home Page". Imperial College London.
  4. ""Turning Back Time - What Impact on Performance?" lecturer biography". British Computer Society. Retrieved 17 March 2009.
  5. Gelenbe, Erol (2000). System performance evaluation: methodologies and applications. CRC Press. p. 330. ISBN 0-8493-2357-6.
  6. "Peter Harrison biography". Analysis, Engineering, Simulation & Optimization of Performance group at Imperial College.
  7. Field, Anthony J.; Harrison, Peter G. (1988). Functional programming. Addison-Wesley. ISBN 9780201192490.
  8. Harrison, Peter G.; Patel, Naresh M. (1992). Performance Modelling of Communication Networks and Computer Architectures. Addison-Wesley. ISBN 9780201544190.
  9. "Professor Peter Harrison's Publications". Imperial College London. Retrieved 1 May 2009.
  10. "Editorial board of The Computer Journal". Oxford Journals. Retrieved 17 March 2009.
  11. "List of Department of Computing, Imperial College staff by Erdős number".
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