Publications
Books
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1995 Chetwynd, A.G. and Diggle, P.J. Discrete Mathematics, Edward Arnold
1995 Chetwynd, A.G. and Burn, B. A Cascade of Numbers, Edward Arnold
1998 Blair, G.S., Blair, L., Bowman, H., Chetwynd, A.G. Formal specification of distributed
multimedia systems. UCL Press.
Refereed Articles. (except 34 and 49 )
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1981 Chetwynd, A.G. and Wilson, J. Snarks and supersnarks. In The Theory and Applications of
Graphs, Wiley, New York.
1983 Chetwynd, A.G. and Wilson, Robin, J. The rise and fall of the critical graph conjecture,
Journal of Graph Theory, 7 153-157.
1983 Chetwynd, A.G. and Yap, H.P. Chromatic index critical graphs of order 9, Discrete Math. 47
23-33.
1984 Chetwynd, A.G. and Hilton, A.J.W. Partial edge-colouring of complete graphs or of graphs
which are nearly complete. Graph Theory and Combinatorics, Academic Press, 81-98.
1984 Bailey, R.A., Cameron, P.J., Chetwynd, A.G., Daykin, D.E.,Hilton, A.J.W., Holroyd, F.C.,
Mason, J.H., Nelson, R., Rowley, C.A., Woodall, D.R. On the intricacy of combinatorial
construction problems, Discrete Math., 50 71-97.
1984 Chetwynd, A.G. and Hilton, A.J.W. Chromatic index of graphs of even order with many
edges, Journal of Graph Theory, 8 463-470.
1984 Chetwynd, A.G. and Hilton, A.J.W. The chromatic index of graphs with at most four vertices
of maximum degree, Proc. of 15th South Eastern Conference. Congressus Numerantum 43 221248.
1985 Chetwynd, A.G. and Hilton, A.J.W. Regular graphs of high degree are 1-factorizable, Proc.
London Math. Soc. (3), 50 193-206.
1986 Chetwynd, A.G. and Hilton, A.J.W. Star multigraphs with three vertices of maximum degree,
Math. Proc. Camb. Phil. Soc. 100 No. 2.
1986 Chetwynd, A.G. and Hilton, A.J.W. Critical star multigraphs, Graphs and Combinatorics 2,
209-221.
1987 Chetwynd, A.G. and Hilton, A.J.W. The edge-chromatic class of regular graphs of degree 4
and their complements, Discrete Maths. 16 125-134.
1987 Cameron, P., Chetwynd, A.G. and Watkins, J. Decomposition of snarks, Journal of Graph
Theory, 11 13-19.
1987 Chetwynd, A.G., Cooke, D.J., Dennett, J.R., Lloyd, J.L., Slade, A.J., Thompson, S.J. and
Wesley, C.D. What Mathematics for Computer Scientists? Computer Bulletin September, also
published by L.M.S. and I.M.A.
1988 Chetwynd, A.G. and Hilton, A.J.W. The existence of multigraphs with a given degree
sequence and given chromatic index, Congressus Numerantium 58, 347-356.
1988 Chetwynd, A.G. and Hilton, A.J.W. Some refinements of the total chromatic number
conjecture, Congressus Numerantium 66 195-216.
1988 Chetwynd, A.G. and Hilton A.J.W., ``Snarks and k-snarks" Ars Combinatorica 25c 39-54.
1989 Chetwynd, A.G. and Hilton, A.J.W. The edge chromatic class of graphs with maximum
degree at least $|V| - 3$, Annals of Discrete Math., 41 91-110.
1989 Chetwynd, A.G. and Hilton, A.J.W. A -subgraph condition for a graph to be Class 1,
Journal of Combinatorial Theory (B) 46 37-45.
1989 Chetwynd, A.G. and Haggkvist, R. A note on list colourings, Journal of Graph Theory, 13,
87-95.
1989 Chetwynd, A.G., Hilton, A.J.W. and Hoffmann, D.G. On the  -subgraph of graphs which
are critical with respect to the chromatic index, Journal of Combinatorial Theory (B), 46 240-275.
1989 Chetwynd, A.G. and Hilton, A.J.W. One factorizing regular graphs of high degree -- an
improved bound. Discrete Maths 75 103-112.
1990 Chetwynd, A.G. and Hilton, A.J.W. The Chromatic index of graphs with large maximum
degree, where the number of vertices of maximum degree is relatively small, Journal of
Combinatorial Theory (B) 48 45-66.
26. 1990 Chetwynd, A.G. Total Colourings. Chapter in Graph Colourings, Nelson, R. and Wilson, R.J.
Pitman Research Notes 65-77.
27. 1991 Chetwynd, A.G. and Hilton, A.J.W. Outline symmetric latin squares, Discrete Math. 97 101117.
28. 1991 Chetwynd, A.G. Total colourings of graphs - A progress report in Graph Theory and
Applications, Wiley 233-244.
29. 1991 Chetwynd, A.G., Hilton, A.J.W. and Zhao Cheng. On the total chromatic number of graphs
of high minimum degree, Journal of London Mathematical Society (2) 44 193-202.
30. 1991 Diggle, P.J. and Chetwynd, A.G. Second--order analysis of spatial clustering for
inhomogeneous populations, Biometrics 47, 1155-63.
31. 1992 Chetwynd, A.G. and Hilton, A.J.W. Alternating Hamiltonian cycles in two coloured
complete bipartite graphs, Journal of Graph Theory 16 153-158.
32. 1992 Chetwynd, A.G. and Haggkvist, R. Some upper bounds on the list and total chromatic
numbers of multigraphs, Journal of Graph Theory no 5 503-516
33. 1992 Drayton, L.D.,Chetwynd, A.G. and Blair, G.S. An introduction to LOTOS through a worked
example, Computer Communications 15 no 2 70-85.
34. 1992 Chetwynd, A.G., Diggle, P.J. Contribution to discussion meeting on the future of honours
degree courses in mathematics and statistics, J.R.Statist.Soc.A. 155 (209-210). (Not referreed)
35. 1993 Bowman, H.,Blair,L.,Blair, G.S.,Chetwynd, A.G. Formal description of distributed
multimedia systems. Proceedings of the 9th British Colloquium for Theoretical Computer Science
(BCTCS'9), York.
36. 1994 Bowman, H.,Blair,L.,Blair, G.S.,Chetwynd, A.G. Time versus abstraction in formal
descriptions. Proceedings of the Sixth International Conference on Formal Description
Techniques, (Forte'93), Boston, Mass., October 1993, Tenney, R.L., Amer, P.D., Umiy Uyar, M.
(eds), 1994. Elsevier Science B.V., North Holland
37. 1994 Blair,L.,Blair, G.S.,Bowman,H.,Chetwynd, A.G., Papathomas, M. A framework for the
formal specification of multimedia systems in open distributed processing MPG-93-12 J
Proceedings of the Workshop on Distributed Multimedia Applications and Quality of Service
Verification, Montreal
38. 1994 Bowman,H., Blair,L., Blair,G.S. and Chetwynd,A.G. A Formal Description Technique
Supporting Quality of Service and Media Synchronisation, Proceedings of Cost 237:Multimedia
Transport and Teleservices, Vienna, Austria November 1994. Springer Verlag LNCS 882, Berlin.
39. 1994 Blair,L.,Blair, G.S.,Bowman,H.,Chetwynd, A.G. A framework for the formal specification
and verification of distributed multimedia systems, Proc. Proceedings of the Workshop on Quality
of Service and Network Performance, 2nd International Conference on Intelligence in Broadband
Services and Networks (IS\&N'94), Aachen, Germany
40. 1995 Blair,L.,Blair, G.S.,Bowman, H.,Chetwynd, A.G. Formal specification and verification of
multimedia systems in open distributed computing, Computer standards and Interfaces. 17 (413436)
41. 1995 Bowman, H.,Blair,L.,Blair, G.S.,Chetwynd, A.G. Formal description of multimedia systems:
An assessment of potential techniques Computer Communications. 18 964-977
42. 1995 Chetwynd, A.G. and Rhodes, S.J. Chessboard Squares, Discrete Math, 141, 47-59
43. 1995 Diggle, P.J. Chetwynd, A.G, Haggkvist, R. and Morris, S.E. Second-order analysis of spacetime disease clustering. Statistical methods in medical research, 4, 124-136
44. 1996 Chetwynd, A.G. and Haggkvist, R. An improvement of Hind's upper bound on the total
chromatic number. Combinatorics, Probability and Computing (5) 99-104.
45. 1996 Lakas, A., Blair, G.S. and Chetwynd, A.G. Specification of Stochastic Properties in RealTime Systems, Proc. 11th UK Performance Engineering Workshop for Computer and
Telecommunications Systems, Liverpool, 5th \& 6th September 1995. Springer Verlag(202-216)
46. 1996 Lakas, A., Blair, G.S. and Chetwynd, A.G. Specification and Verification of Real-Time
Safety and Liveness Properties using LOTOS and SQTL. Proc. of the Eighth International
Workshop on Software Specification and Design, Paderborn, Germany, March 1996.
47. 1996 Barnes, N., Blair, G.S. Lakas, A., and Chetwynd, A. "Costing-Extending the Locative Logic
Model of Networks", 8th EuroMricro Workshop on Real-Time Systems, L'Aquila,Italy, June 1996.
48. 1996 Lakas, A., Blair, G.S., and Chetwynd, A. "A Formal Approach to the Design of QoS
Parameters in Multimedia Systems", Proceedings of the 4th International Workshop on Quality of
Service, Paris, France.
49. 1996 Chetwynd, A.G,, Learning to Teach, Teaching and learning Undergraduate Mathematics,
Newsletter 5 (Not refereed)
50. 1996 Young B., Drewett R., Chetwynd A., Diggle P. Sucking patterns in breast fed babies. Journal
of Reproductive and Infant Psychology
51. Chetwynd, A.G. and Rhodes, S.J. Avoiding Partial Latin Squares and Intricacy. Discrete Math. 1732
52. Chetwynd, A.G. and Rhodes, S.J. Avoiding multiple entry arrays. Journal of Graph Theory (25)
257-266.
53. 1997 Henderson, M. and Chetwynd, A. Electron Microscopy and Digital Image Analysis. Today's
Life Science. (22-29)
54. Chetwynd, A., Diggle, P., Drewett, R. and Young, B. A mixture model for sucking patterns of
breast-fed infants Statistics in Medicine 17 (395-405).
55. 1998 Kahn, P.E., Anderson,J., Austin, K., Barnard, A., Jagger, J. and Chetwynd, A.G. The
significance of ideas in undergraduate mathematics. Teaching Mathematics and its Applications.
Vol 17 No. 2 (June 1998) pp. 78-85
56. 1998 Chetwynd, A and Diggle, P. On estimating the reduced second moment measure of a
stationary spatial point process. Australian Journal Of Statistics, 40 (11-15).
57. 1999 Chetwynd, A., Diggle, P., Jarner, M., Bhopal, R.S., Metcalf, J.V. and James, O.F.W.
Evidence of spatial variation in risk and clustering in PBC. Hepatology 30:407A
58. 2000 Anderson,J., Austin, K., Barnard, A., Chetwynd, A.G. and Kahn, P.E. Supporting Student
Learning. Teaching Mathematics and its Applications. Vol 19 No 4 (166-172)
59. 2001 Chetwynd, A.G., Diggle, P.J., Marshall, A. and Parslow, R. Investigation of spatial clustering
from matched and stratified case-control studies. Biostatistics 2 (277-293)
60. 2001 Prince, MI, Chetwynd, A, Diggle, PJ, et al. Long-term survival in "modern" PBC is
significantly better than the Mayo model predicts J HEPATOL 34: 216-216 Suppl. 1
61. 2001 The geographical distribution of primary billiary cirrhosis in a well defined cohort, M.Prince,
A.Chetwynd,P.Diggle,M.Jarner, J.Metcalf,O.James (Hepatology 34 1083-8)
62. 2002 Shilling, V., Chetwynd, A. and Rabbitt, P.M.A Individual inconsistency across measures of
inhibition; an investigation of the construct validity of inhibition in older adults.
(Neuropsychologia 40 part 6, 605-620 )
63. 2002 Prince, M., Chetwynd, A., Craig, W., Metcalf, j. and James, O. Patient survival and symptom
progression in a large geographically based cohort of patients with PBC follow up for up to 28
years, Gastroenterology 123(4) 1044-51
64. 2002 Jarner, M.F.,Diggle, P.J and Chetwynd A.G.Estimation of spatial variation in risk using
matched case-control data. Biometrical Journal 44 936-945
65. 2002 Prince, M, Chetwynd, A, Craig, W, et al. Multivariate analysis of survival in a large,
population based cohort of patients with primary biliary cirrhosis (PBC).HEPATOLOGY 36 (4):
1343 Part 2 Suppl. S
66. 2003 Rabbitt, P, Chetwynd, A.G, McInnes,L. Do clever brains age more slowly? Further
explanation of a Nun result, British Journal of Psychology 94, 63-71
67. 2003 Faux, G., Chetwynd, A.G.,et al QCA Geometry report
68. 2004 Prince, M, Chetwynd, A, Craig, W, Metcalf,J and.James, O . Asymptomatic primary billiary
cirrhosis: Clinical features, prognosis & symptom progression in a large population based cohort,
GUT53 865-870
69. 2004 Marshall, A, Chetwynd, A and Morris, J Insulin-dependent diabetes mellitus in childhood: a
matched case control study in Lancashire and Cumbria, UK Diabetic Medicine 21 1035-1040
70. 2005 Exploratory analysis of longitudinal trials with staggered intervention times. I.Sousa, A.
Chetwynd and P. Diggle, Biostistics 6 (3): 479-485
71. 2006 Effect and duration of lung volume reduction surgery: Mid-term results of the Brompton trial
Author(s): Lim E, Ali A, Cartwright N, Sousa I, Chetwynd A, Polkey M, Geddes D, Pepper J,
Diggle P, Goldstraw P THORACIC AND CARDIOVASCULAR SURGEON 54 (3): 188-192
72. 2006 Royal Society: report A degree of concern? First degrees in science, technology and
mathematics.
73. 2006 A Chetwynd and H Short Cholera step too Farr, Significance
74. 2006 PJ Diggle, V Gomez-Rubio, PE Brown, AG Chetwynd, S Second-order analysis of
inhomogeneous spatial point processes using case-control data, Biometrics
75. submitted Diggle P., Sousa I., Chetwynd A. Joint Modelling of repeated measurements and time
to event outcomes
Submitted and Preprints
76. Chetwynd, A.G. and Haggkvist, R. Completing partial n x n latin squares. submitted Discrete
Maths.
77. Chetwynd, A.G. and S.J.Rhodes. Avoiding arrays with given restrictions. submitted Discrete
Maths.
78. Bowman, H., G.S. Blair, L. Blair, and A. Chetwynd. Separating Timing Concerns in Software
Development for Real-Time Systems. preprint.
79. Barnes, N., Blair, G.S., Chetwynd, A. and Lakas, A. Formally restricting bandwidth in a decidable
manner. preprint