XMod : a GAP 4 package - References

[A1]

M. Alp,
GAP, crossed modules, cat1-groups: applications of computational group theory,
PhD Thesis, University of Wales, Bangor, 1997.

[AW1]

M. Alp and C. D. Wensley,
Enumeration of cat1-groups of low order,
Int. J. Algebra and Computation, 10:407--424, 2000. bibitem[B82] R. Brown,
Higher-dimensional group theory,
in Low-dimensional topology, London Math. Soc. Lecture Note Series 48,
ed. R. Brown and T. L. Thickstun, Cambridge University Press, 1982, pp. 215-238.

[BH1]

R. Brown and P. J. Higgins,
On the connection between the second relative homotopy group and some related spaces,
Proc. London Math. Soc. 36:193--212, 1978.

[BW1]

R. Brown and C. D. Wensley,
On finite induced crossed modules, and the homotopy 2-type of mapping cones,
Theory and Applications of Categories 1:54--71, 1995.

[BW2]

R. Brown and C. D. Wensley,
On the computation of induced crossed modules,
Theory and Applications of Categories 2:3--16, 1996.

[E1]

G. Ellis,
Crossed modules and their higher dimensional analogues,
PhD thesis, University of Wales, Bangor, 1984.

[G1]

N. D. Gilbert,
Derivations, automorphisms and crossed modules,
Comm. in Algebra 18:2703--2734, 1990.

[L1]

J. L. Loday.
Spaces with finitely many non-trivial homotopy groups,
J. App. Algebra, 24:179--202, 1982.

[M1]

E. J. Moore,
Graphs of Groups: Word Computations and Free Crossed Resolutions,
PhD Thesis, University of Wales, Bangor, 2001.

[N2]

K. J. Norrie.
Crossed modules and analogues of group theorems,
PhD thesis, King's College, University of London, 1987.

[N1]

K. J. Norrie.
Actions and automorphisms of crossed modules,
Bull. Soc. Math. France, 118:129--146, 1990.

[W2]

J. H. C. Whitehead.
On operators in relative homotopy groups,
Ann. of Math., 49:610--640, 1948.

[W1]

J. H. C. Whitehead.
Combinatorial homotopy II,
Bull. Amer. Math. Soc., 55:453--496, 1949.

[Up]