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# Combinatorial Methods in Topology and Algebraic Geometry

### About this Title

**John R. Harper** and **Richard Mandelbaum**, Editors

Publication: Contemporary Mathematics

Publication Year:
1985; Volume 44

ISBNs: 978-0-8218-5039-8 (print); 978-0-8218-7629-9 (online)

DOI: https://doi.org/10.1090/conm/044

MathSciNet review: 813097

### Table of Contents

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**Front/Back Matter**

** Topology and Combinatorial Group Theory **

- M. Cohen, W. Metzler and K. Sauermann – Collapses of $K\times I$ and group presentations [MR 813098]
- Wolfgang Metzler – On the Andrews-Curtis conjecture and related problems [MR 813099]
- Martin Lustig and Wolfgang Metzler – Integral representations of $\textrm {Aut}\,F^n$ and presentation classes of groups [MR 813100]
- Richard Z. Goldstein and Edward C. Turner – A note on commutators and squares in free products [MR 813101]
- Kyung Bai Lee and Frank Raymond – Rigidity of almost crystallographic groups [MR 813102]
- John R. Stallings – Finite graphs and free groups [MR 813103]
- C. L. Tretkoff and M. D. Tretkoff – A topological proof of a theorem of Brunner and Burns about M. Hall groups [MR 813104]

- David Gabai – The Murasugi sum is a natural geometric operation. II [MR 813105]
- Louis H. Kauffman – The Arf invariant of classical knots [MR 813106]
- W. B. Raymond Lickorish – The unknotting number of a classical knot [MR 813107]
- Bruce Trace – A general position theorem for surfaces in Euclidean $4$-space [MR 813108]

- Allan L. Edmonds – On the equivariant Dehn lemma [MR 813109]
- John Hempel – Virtually Haken manifolds [MR 813110]
- José María Montesinos – Lectures on $3$-fold simple coverings and $3$-manifolds [MR 813111]
- Hae Soo Oh – Witt classes of torsion linking forms [MR 813112]
- Martin Scharlemann – Outermost forks and a theorem of Jaco [MR 813113]
- John R. Stallings – Surfaces in $3$-manifolds [MR 813114]

** Homotopy Theory and Infinite Dimentional Topology **

- M. G. Barratt – Taming Hopf invariants [MR 813115]
- F. R. Cohen – Artin’s braid groups and classical homotopy theory [MR 813116]
- Leonard R. Rubin – More compacta of infinite cohomological dimension [MR 813117]
- A. Zabrodsky – Endomorphisms in the homotopy category [MR 813118]

** Four Manifolds and Algebraic Surfaces **

- Selman Akbulut – On fake $S^3\tilde \times S^1$ #$S^2\times S^2$ [MR 813119]
- Norman Goldstein – Manifold having nonample normal bundles in quadrics [MR 813120]
- Richard Mandelbaum – Lefschetz fibrations of Riemann surfaces and decompositions of complex elliptic surfaces [MR 813121]
- B. Moishezon – Algebraic surfaces and the arithmetic of braids. II [MR 813122]
- José María Montesinos – A note on moves and on irregular coverings of $S^4$ [MR 813123]