Are triangulations of compact manifolds PL homeomorphic?












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I have frequently come across the statement "Any two triangulations of a compact n-manifold are related by bistellar moves" attributed to Pachner via Lickorish's paper 'Simplicial moves on complexes and manifolds'. The theorem this refer to is the following: Closed combinatorial n-manifolds are PL homeomorphic if and only if they are bistellar equivalent.



My question is: Considering that Hauptvermutung is not true for manifolds of dimension more than 3, how can we justify this statement?










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    I have frequently come across the statement "Any two triangulations of a compact n-manifold are related by bistellar moves" attributed to Pachner via Lickorish's paper 'Simplicial moves on complexes and manifolds'. The theorem this refer to is the following: Closed combinatorial n-manifolds are PL homeomorphic if and only if they are bistellar equivalent.



    My question is: Considering that Hauptvermutung is not true for manifolds of dimension more than 3, how can we justify this statement?










    share|cite|improve this question







    New contributor




    user136604 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.







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      5












      5








      5





      $begingroup$


      I have frequently come across the statement "Any two triangulations of a compact n-manifold are related by bistellar moves" attributed to Pachner via Lickorish's paper 'Simplicial moves on complexes and manifolds'. The theorem this refer to is the following: Closed combinatorial n-manifolds are PL homeomorphic if and only if they are bistellar equivalent.



      My question is: Considering that Hauptvermutung is not true for manifolds of dimension more than 3, how can we justify this statement?










      share|cite|improve this question







      New contributor




      user136604 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.







      $endgroup$




      I have frequently come across the statement "Any two triangulations of a compact n-manifold are related by bistellar moves" attributed to Pachner via Lickorish's paper 'Simplicial moves on complexes and manifolds'. The theorem this refer to is the following: Closed combinatorial n-manifolds are PL homeomorphic if and only if they are bistellar equivalent.



      My question is: Considering that Hauptvermutung is not true for manifolds of dimension more than 3, how can we justify this statement?







      gt.geometric-topology simplicial-complexes triangulations combinatorial-topology






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      asked 1 hour ago









      user136604user136604

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          Pachner‘s Theorem is about PL-homeomorphic manifolds, while the Hauptvermutung is asking for a PL-homeomorphism between manifolds which a priori are only homeomorphic.






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            1 Answer
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            active

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            $begingroup$

            Pachner‘s Theorem is about PL-homeomorphic manifolds, while the Hauptvermutung is asking for a PL-homeomorphism between manifolds which a priori are only homeomorphic.






            share|cite|improve this answer









            $endgroup$


















              3












              $begingroup$

              Pachner‘s Theorem is about PL-homeomorphic manifolds, while the Hauptvermutung is asking for a PL-homeomorphism between manifolds which a priori are only homeomorphic.






              share|cite|improve this answer









              $endgroup$
















                3












                3








                3





                $begingroup$

                Pachner‘s Theorem is about PL-homeomorphic manifolds, while the Hauptvermutung is asking for a PL-homeomorphism between manifolds which a priori are only homeomorphic.






                share|cite|improve this answer









                $endgroup$



                Pachner‘s Theorem is about PL-homeomorphic manifolds, while the Hauptvermutung is asking for a PL-homeomorphism between manifolds which a priori are only homeomorphic.







                share|cite|improve this answer












                share|cite|improve this answer



                share|cite|improve this answer










                answered 1 hour ago









                ThiKuThiKu

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