Open Problem Garden - Is there an algorithm to determine if a triangulated 4-manifold is combinatorially equivalent to the 4-sphere? - Comments https://openproblemgarden.org/op/is_there_an_algorithm_to_determine_if_a_triangulated_4_manifold_is_combinatorially_equivalent_to_the_4_sphere Comments for "Is there an algorithm to determine if a triangulated 4-manifold is combinatorially equivalent to the 4-sphere?" en Is there an algorithm to determine if a triangulated 4-manifold is combinatorially equivalent to the 4-sphere? https://openproblemgarden.org/op/is_there_an_algorithm_to_determine_if_a_triangulated_4_manifold_is_combinatorially_equivalent_to_the_4_sphere <table cellspacing="10"> <tr> <td> Author(s): <a href="/category/novikov">Novikov</a>&nbsp;&nbsp; </td> <td align=right> Subject: <a href="/topology">Topology</a>&nbsp;&nbsp; </td> </tr> <tr> <td colspan=2> <table border=1 cellspacing="5"> <tr><td> <div class="envtheorem"><b>Problem</b>&nbsp;&nbsp; Is there an algorithm which takes as input a triangulated 4-manifold, and determines whether or not this manifold is combinatorially equivalent to the 4-sphere? </div> </tr></td> </table> </td> </tr> </table> Novikov 4-sphere algorithm Topology https://openproblemgarden.org/op/is_there_an_algorithm_to_determine_if_a_triangulated_4_manifold_is_combinatorially_equivalent_to_the_4_sphere#comment Sat, 07 Nov 2009 21:24:04 +0100 rybu 37161 at https://openproblemgarden.org