1. 1989
  2. Published

    Speech security and permanents of (0,1) matrices

    Mitchell, C. J., 1989, Cryptography and Coding: Proceedings of the IMA Cryptography and Coding Conference, Cirencester, December 1986. Beker, H. J. & Piper, F. C. (eds.). Oxford University Press, p. 231-240 10 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

  3. Published

    The security issue

    Mitchell, C. J., 1989, Proceedings of Value Added Network Services for Europe, London, September 1989. London: IBC Technical Services Ltd, 5 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

  4. 1988
  5. Published

    Comment on 'Existence of one-dimensional perfect binary arrays'

    Mitchell, C. J., 26 May 1988, In : Electronics Letters. 24, 11, p. 714

    Research output: Contribution to journalArticle

  6. Published

    Constructing new perfect binary arrays

    Jedwab, J. & Mitchell, C. J., 26 May 1988, In : Electronics Letters. 24, 11, p. 650-652 3 p.

    Research output: Contribution to journalArticle

  7. Published

    Key storage in secure networks

    Mitchell, C. J. & Piper, F. C., 1988, In : Discrete Applied Mathematics. 21, 3, p. 215-228 14 p.

    Research output: Contribution to journalArticle

  8. Published

    Solutions to the multidestination secure electronic mail problem

    Mitchell, C. J. & Walker, M., 1988, In : Computers and Security. 7, p. 483-488 6 p.

    Research output: Contribution to journalArticle

  9. Published

    Switch minimisation for a simple bidirectional network

    Mitchell, C. J. & Wild, P. R., 1988, In : Electronics Letters. 24, 20, p. 1284-1286 3 p.

    Research output: Contribution to journalArticle

  10. Published

    Switching networks for bidirectional telephone systems

    Mitchell, C. J. & Wild, P. R., 1988, In : Ars Combinatoria. 25A, p. 89-94 6 p.

    Research output: Contribution to journalArticle

  11. Published

    The security architecture of the secure mobile messaging demonstrator

    Mitchell, C. J., Rush, P. D. C. & Walker, M., 1988, Proceedings of UK IT 88. IED, Swansea, p. 171-174 4 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

  12. 1987
  13. Published

    One-to-one correspondence between slowly decaying interfacial profiles and reflectivity

    Dietrich, S. & Schack, R., 1987, In : Physical Review Letters. 58, p. 140-143 4 p.

    Research output: Contribution to journalArticle

  14. Published

    Permutations with restricted displacement

    Beker, H. J. & Mitchell, C. J., 1987, In : SIAM Journal on Algebraic and Discrete Methods. 8, p. 338-363 26 p.

    Research output: Contribution to journalArticle

  15. Published

    Switch reduction for bidirectional telephone systems

    Mitchell, C. J. & Wild, P. R., 1987, In : Electronics Letters. 23, p. 346-347 2 p.

    Research output: Contribution to journalArticle

  16. Published

    The cost of reducing key-storage requirements in secure networks

    Mitchell, C. J. & Piper, F. C., 1987, In : Computers and Security. 6, 4, p. 339-341 3 p.

    Research output: Contribution to journalArticle

  17. 1986
  18. Published

    A First Course in Formal Logic and its Applications in Computer Science

    Dowsing, R., Rayward-Smith, V. J. & Walter, C. D., 1986, Blackwell Scientific Publications, Oxford.

    Research output: Book/ReportBook

  19. Published

    Adjacency Matrices

    Walter, C. D., 1986, In : SIAM Journal on Algebraic and Discrete Methods. 7, p. 18-29 12 p.

    Research output: Contribution to journalArticle

  20. 1985
  21. Published

    A classification of time element speech scramblers

    Mitchell, C. J. & Piper, F. C., Nov 1985, In : Journal of the Institution of Electronic and Radio Engineers. 55, 11/12, p. 391-396 6 p.

    Research output: Contribution to journalArticle

  22. 1984
  23. Published

    A comparison of the cryptographic requirements for digital secure speech systems operating at different bit rates

    Mitchell, C. J., 1984, International conference on Secure Communication Systems, IEE, London, 22-23rd February 1984. IEE Press, p. 32-37 6 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

  24. Published

    Group divisible designs with dual properties

    Mitchell, C. J., 1984, In : Mitteilungen aus dem Mathematischen Seminar Giessen. 165, p. 105-117 13 p.

    Research output: Contribution to journalArticle

  25. 1983
  26. Published

    Intersection numbers for coherent configurations and the spectrum of a graph

    Walter, C. D., 1983, In : Journal of Combinatorial Theory, Series B. 35, 2, p. 201-204 4 p.

    Research output: Contribution to journalArticle

  27. 1982
  28. Published

    Tactical decompositions of designs

    Beker, H. J., Mitchell, C. J. & Piper, F. C., 1982, In : Aequationes Mathematicae. 25, p. 123-152 30 p.

    Research output: Contribution to journalArticle

  29. 1980
  30. Published

    Pure fields of degree 9 with class number prime to 3

    Walter, C. D., 1980, In : Annales de l'Institut Fourier, Grenoble. 30, p. 1-16 16 p.

    Research output: Contribution to journalArticle

  31. 1979
  32. Published

    An infinite family of symmetric designs

    Mitchell, C. J., 1979, In : Discrete Mathematics. 26, p. 247-250 4 p.

    Research output: Contribution to journalArticle

  33. Published

    Brauer's class number relation

    Walter, C. D., 1979, In : Acta Arithmetica. 35, p. 33-40 8 p.

    Research output: Contribution to journalArticle

  34. Published

    Kuroda's class number relation

    Walter, C. D., 1979, In : Acta Arithmetica. 35, p. 41-51 11 p.

    Research output: Contribution to journalArticle

  35. Published

    The ambiguous class group and the genus group of certain non-normal extensions

    Walter, C. D., 1979, In : Mathematika. 26, p. 113-124 12 p.

    Research output: Contribution to journalArticle

  36. 1978
  37. Published

    A construction method for point divisible designs

    Beker, H. J. & Mitchell, C. J., 1978, In : Journal of Statistical Planning and Inference. 2, 3, p. 293-306 14 p.

    Research output: Contribution to journalArticle

  38. 1977
  39. Published

    A class number relation in Frobenius extensions of number fields

    Walter, C. D., 1977, In : Mathematika. 24, p. 216-225 10 p.

    Research output: Contribution to journalArticle

  40. Published

    The class number of pure fields of prime degree (addendum)

    Parry, C. J. & Walter, C. D., 1977, In : Mathematika. 24, p. 122 1 p.

    Research output: Contribution to journalArticle

  41. 1976
  42. Published

    Class Number Relations in Algebraic Number Fields

    Walter, C. D., 1 Apr 1976, University of Cambridge.

    Research output: Book/ReportCommissioned report

  43. Published

    The class number of pure fields of prime degree

    Parry, C. J. & Walter, C. D., 1976, In : Mathematika. 23, p. 220-226 7 p.

    Research output: Contribution to journalArticle

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