An algebraic approach to the Banach-Stone theorem for separating linear bijections

Hwa Long Gau, Jyh Shyang Jeang, Ngai Ching Wong

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Let X be a compact Hausdorff space and C(X) the space of continuous functions defined on X. There are three versions of the Banach-Stone theorem. They assert that the Banach space geometry, the ring structure, and the lattice structure of C(X) determine the topological structure of X, respectively. In particular, the lattice version states that every disjointness preserving linear bijection T from C(X) onto C(Y) is a weighted composition operator Tf = h · f ○ φ which provides a homeomorphism φ from Y onto X. In this note, we manage to use basically algebraic arguments to give this lattice version a short new proof. In this way, all three versions of the Banach-Stone theorem are unified in an algebraic framework such that different isomorphisms preserve different ideal structures of C(X).

Original languageEnglish
Pages (from-to)399-403
Number of pages5
JournalTaiwanese Journal of Mathematics
Volume6
Issue number3
DOIs
StatePublished - Sep 2002

Keywords

  • Banach-Stone theorem
  • Disjointness preserving maps
  • Separating maps

Fingerprint

Dive into the research topics of 'An algebraic approach to the Banach-Stone theorem for separating linear bijections'. Together they form a unique fingerprint.

Cite this