English

Lattice isomorphisms between certain sublattices of continuous functions

Functional Analysis 2019-07-23 v1

Abstract

Let C(X,I)C(X,I) be the lattice of all continuous functions on a compact Hausdorff space XX with values in the unit interval I=[0,1]I=[0,1]. We show that for compact Hausdorff spaces XX and YY and (not necessarily contain constants) sublattices AA and BB of C(X,I)C(X,I) and C(Y,I)C(Y,I), respectively, which satisfy a certain separation property, any lattice isomorphism φ:AB\varphi : A \longrightarrow B induces a homeomorphism μ:YX\mu: Y \longrightarrow X. If, furthermore, AA and BB are closed under the multiplication, then φ\varphi has a representation φ(f)(y)=my(f(μ(y)))\varphi(f)(y)=m_y(f(\mu(y))), fAf\in A, for all points yy in a dense GδG_\delta subset Y0Y_0 of YY, where each mym_y is a strictly increasing continuous bijection on II. In particular, for the case where XX and YY are metric spaces and AA and BB are the lattices of all Lipschitz functions with values in II, the set Y0Y_0 is the whole of YY.

Keywords

Cite

@article{arxiv.1907.08786,
  title  = {Lattice isomorphisms between certain sublattices of continuous functions},
  author = {Vahid Ehsani and Fereshteh Sady},
  journal= {arXiv preprint arXiv:1907.08786},
  year   = {2019}
}
R2 v1 2026-06-23T10:25:54.107Z