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A semigroup of simple homotopy types

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References

  1. Dyer, M.N., Sieradski, A.J.: Trees of homotopy types of two-dimensionalCW-complexes. Commentarii math. Helvet.48, 31–44 (1973)

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  2. Magnus, W., Karrass, A., Solitar, P.: Combinatorial Group Theory. New York: Interscience 1966

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  3. Metzler, W.: Über den Homotopietyp zweidimensionalerCW-Komplexe und Elementartransformationen bei Darstellungen von Gruppen durch Erzeugende und definierende Relationen. J. reine angew. Math.285, 7–23 (1976)

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  4. Sieradski, A.J.: Combinatorial isomorphisms and combinatorial homotopy equivalences. J. pure appl. Algebra7, 59–95 (1976)

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  1. Department of Mathematics, University of Oregon, 97403, Eugene, Oregon, USA

    Allan J. Sieradski

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  1. Allan J. Sieradski
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Sieradski, A.J. A semigroup of simple homotopy types. Math Z 153, 135–148 (1977). https://doi.org/10.1007/BF01179786

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