Necessity of non-stratified and anti-stratified spaces in lattice-valued topology

Authors:
S. E. Rodabaugh
Affiliations:
Institute for Applied Topology and Topological Structures, College of Science, Technology, Engineering, Mathematics (STEM), Youngstown State University, Youngstown, OH 44555-3347, USA
Venue:
Fuzzy Sets and Systems
Year:
2010

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Abstract

This paper surveys the necessity of non-stratified spaces from these viewpoints: the characteristic functor, the L-spectrum and L-soberification functors, the upper free functor associated with L-valued frames, and two functorial embeddings associated with topological systems from semantic domains. Interestingly, additional arguments also emerge en route for stratified spaces, so that this paper ultimately argues for the necessity of both stratified and non-stratified spaces in fixed-basis topology (the schemum of L-Top's) and variable-basis topology (e.g., Loc-Top).