# WMI Preprints 1978

*Injective hulls of group rings,*

by K.A. Brown & J. Lawrence

*The invertible ideal theorem for right Noetherian rings,*

by A.W. Chatters, A.W. Goldie, C.R. Hajarnavis & T.H. Lenagan

*Link pictures for 4-manifolds,*

by E.C. de Sa

*Unique ergodicity for quasi-invariant measures,*

by K. Schmidt

*Soluble groups with coherent group ring,*

by R. Bieri & R. Strebel

*A class of probability measures on groups arising from some problems in ergodic theory,*

by V. Losert & K. Schmidt

*Coboundaries and homomorphisms for nonsingular actions and a problem by H. Helson,*

by C.C. Moore & K. Schmidt

*Notes on the associated graded ring of a group ring,*

by I.B.S. Passi

*On the local stability of wave fronts defined by eikonal equations,*

by D. Rand

*Modular representations of finite groups with unsaturated split (B,N)-pairs,*

by N.B. Tinberg

*Augmentation quotients of some nonabelian finite groups,*

by G. Losey & N. Losey

*Some indecomposable modules of groups with split (B,N)-pairs,*

by N.B. Tinberg

*K-theory and stable structure of Noetherian group rings,*

by K.A. Brown, T.H. Lenagan & J.T. Stafford

*On the classifying spaces of discrete monoids,*

by D. McDuff

*Remarks on the GL2 of a ring,*

by P. Menal

*Nonlinear modeling of multistable perception,*

by T. Poston & I. Stewart

*On the sequence entropy of transformations with quasi discrete spectrum,*

by P. Hulse

*A lower bound for the entropy of certain maps of the unit intervals,*

by L. Jonker & D. Rand

*The stable structure of the augmentation quotients of the groups of the order p ^{3},*

by G. Losey & N. Losey

*The homology of some groups of diffeomorphisms,*

by D. McDuff

*Finitary isomorphisms with finite expected code lengths,*

by W. Parry

*Bifurcations in one dimension. II. A versal model for bifurcations,*

by L. Jonker & D. Rand

*On the surfaces of Delaunay and their Gauss maps,*

by J. Eells

*Ratio in early Greek mathematics,*

by D.H. Fowler

*Approximations and the spectral properties of measure-preserving group actions,*

by G.W. Riley

*On the ergodicity of some real line extensions of irrational rotations,*

by G.W. Riley & G. Atkinson

*An infinite dimensional generalisation of the Cameron-Martin-Girsanov theorem,*

by D. Bell

*Prime ends,*

by D.B.A. Epstein

*The geometry of Mahowald orientations,*

by B.J. Sanderson

*Markov maps associated with Fuchsian groups,*

by R. Bowen & C. Series

*Applications and invocations of catastrophe theory,*

by I. Stewart

*Homotopy equivalences of manifolds,*

by M. Weiss

*Bifurcations on one dimension I. The nonwandering set,*

by L. Jonker & D. Rand

*Torsion products as homotopy groups,*

by C.A. Robinson

*Asymptotically invariant sequences and an action of SL(2,Z) on the 2-sphere,*

by K. Schmidt

*Graphical representation of n-dimensional space groups,*

by R.L.E. Schwarzenberger

*Pointwise periodic homeomorphisms,*

by D.B.A. Epstein

*Injective modules for groups rings of polycyclic groups I,*

by I.M. Musson

*Mixing properties of linear mod 1 maps of the unit interval*

by M.R. Palmer

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Mathematics Institute

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University of Warwick

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United Kingdom