# Mathematics Preprint List 2002

02.01 KAMPS, K.H. & PORTER, T.

*2-groupoid enrichments in homotopy theory and algebra*

02.02 BROWN, R. & PORTER, T.

*The intuitions of higher dimensional algebra
for the study of structured space*

02.03 MUTLU, A. & PORTER, T.

*Crossed squares and 2-crossed modules*

02.04 BROWN, R. & WENSLEY, C.D.

*Computation and Homotopical Applications of Induced Crossed Modules*

02.05 KUNCHEVA, L.I.,

*`Fuzzy' vs `Non-fuzzy' in combining classifiers designed by boosting*

02.06
WHITAKER, C.J. & KUNCHEVA, L.I.,

*Examining the relationship between majority vote accuracy
and diversity in bagging and boosting*

02.07
KUNCHEVA, L.I. & WHITAKER, C.J.,

*Using diversity with three variants of boosting:
aggressive, conservative and inverse*

02.08
SKURICHINA, M., KUNCHEVA, L.I. & DUIN, R.P.W.,

*Bagging and boosting for the nearest mean classifier:
Effects of sample size on diversity and accuracy*

02.09
BROWN, R., MOORE, E.J., PORTER, T. & WENSLEY, C.D.

*Crossed complexes, and free crossed resolutions
for amalgamated sums and HNN-extensions of groups*

02.10
LAWSON, M.V.

*E**-unitary inverse semigroups

02.11
SPARGO, A.W., RIDLEY, P.H.W. & ROBERTS, G.W.

*Gilbert damping in polycrystalline thin films*

02.12
SPARGO, A.W., RIDLEY, P.H.W. & ROBERTS, G.W.

*Periodic finite element simulation of magnetisation dynamics*

02.13
SPARGO, A.W., RIDLEY, P.H.W. & ROBERTS, G.W.

*Geometric Integration of the Gilbert Equation*

02.14 (revised as 04.19)
BROWN, R., MORRIS, I., SHRIMPTON, J. and WENSLEY, C.D.,

*Graphs of morphisms of graphs*

02.15
PORTER, T.,

*Geometric aspects of multiagent systems*

02.16
BOOTH, P.I.,

*Mapping Spaces for Homotopy Theory*

02.17
BOOTH, P.I.,

*
Cofibrations, Cohomology, Fibrations, Identifications, and Mapping Spaces
*

02.18
BROWN, R. & JANELIDZE, G.,

*
Galois theory and a new homotopy double groupoid of a map of spaces
*

02.19
LAMBE, L.A., LUCZAK, R. & NEHRBASS, J.W.

*
Symbolic computation in electromagnetic modeling
*

02.20
LAMBE, L.A. & SEILER, W.M.

*
Differential equations, Spencer cohomology, and computing resolutions
*

02.21
BROWN, R.

*
Multiple groupoids as a non commutative tool for
higher dimensional local-to-global problems
*

02.22
BROWN, R. & GLAZEBROOK, J.F.

*
Connections, local subgroupoids, and a holonomy
Lie groupoid of a line bundle gerbe
*

02.23
ARVASI, Z. & PORTER, T.,

*Freeness conditions for crossed squares of commutative algebras*

02.24
BROWN, R. & HIGGINS, P.J.

*
Cubical abelian groups with connections are equivalent to chain complexes
*

02.25
BROWN, R. & HIGGINS, P.J.

*
The fundamental groupoid of the quotient of a Hausdorff space by a
discontinuous action of a discrete group is the orbit groupoid
*

02.26
BROWN, R.

*
Crossed complexes and homotopy groupoids as non commutative tools for
higher dimensional local-to-global problems
*

02.27
AL-ZAIDAN, A.S.

*
Mathematical Modeling of Marine Environment Contamination
using Fuzzy Set Theory
*

02.28
ABAS, S.J.

*
Islamic patterns: the spark in Escher's genius
*

02.29
RIDLEY, P.H.W. & ROBERTS, G.W.

*Variational approach to micromagnetics
*

02.30
RIDLEY, P.H.W. & ROBERTS, G.W.

*Hybrid finite element/boundary integral methods
for micromagnetics*

02.31
KUNCHEVA, L.I., SKURICHINA, M. & DUIN, R.P.W.,

*An experimental study on diversity for
bagging and boosting with linear classifiers*

02.32
KUNCHEVA, L.I.,

*That elusive diversity in classifier ensembles*

02.33
KUNCHEVA, L.I.,

*Error bounds for aggressive and conservative AdaBoost*

02.34
KELLENDONK, J. & LAWSON, M.V.,

*Partial actions of groups*

02.35
LAWSON, M.V., MARGOLIS, S. & STEINBERG, B.,

*Expansions of inverse semigroups*