Publisher： Cambridge University Press
E-ISSN： 1755-1633|12|1|143-148
ISSN： 0004-9727
Source： Bulletin of the Australian Mathematical Society, Vol.12, Iss.1, 1975-02, pp. : 143-148
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
A constructive proof of a theorem of Worrell and Wicke, which states that every open covering of a θ-refinable space has a σ-distributively point-finite open refinement that covers the space minimally, is presented. Spaces for which every open covering has an open refinement which covers the space minimally are characterized by the use of discrete closed collections and some open questions relating to spaces of this type are included.
Related content
Moduli spaces of irreducible symplectic manifolds
Compositio Mathematica, Vol. 146, Iss. 2, 2010-03 ,pp. :
Access to resources
Recommend
Irreducible Subalgebra Primal Algebras
Order, Vol. 29, Iss. 2, 2012-07 ,pp. :
Irreducible groups with submultiplicative spectrum
By Kramar M.
Linear Algebra and its Applications, Vol. 378, Iss. unknown, 2004-02 ,pp. :
EXTENSIONS OF IRREDUCIBLE -MODULES
Communications in Algebra, Vol. 30, Iss. 8, 2002-01 ,pp. :