Starts at: 2025-03-06 11:55AM
Ends at: 2025-03-06 12:15PM
Abstract:
We expand upon our earlier results, to show that every nondegenerate hereditarily decomposable Hausdorff continuum has two or more non-block points, i.e points whose complements contain a continuum-connected dense subset. The celebrated non-cut point existence theorem states that all nondegenerate Hausdorff continua have two or more non-cut points, and the corresponding result for non-block points is known to hold for metrizable continua. It is also known that there are consistent examples of Hausdorff continua with no non-block points, but that non-block point existence holds for Hausdorff continua that are either aposyndetic, irreducible, or separable.