Abstract

For a compact space K we denote by $$C_w(K)$$ ( $$C_p(K)$$ ) the space of continuous real-valued functions on K endowed with the weak (pointwise) topology. In this paper we address the following basic question which seems to be open: Suppose that K is an infinite (metrizable) compact space. Can $$C_w(K)$$ and $$C_p(K)$$ be homeomorphic? We show that the answer is “no”, provided K is an infinite compact metrizable C-space. In particular our proof works for any infinite compact metrizable finite-dimensional space K.

Highlights

  • Mathematics Subject Classification 46E10 · 54C35 For a compact space K we can consider three natural topologies on the set C(K ) of all continuous real-valued functions on K : the norm topology, the weak topology and the pointwise topology

  • There is a vast literature studying the weak and the pointwise topology in function spaces, but surprisingly it seems to be unknown whether these two topologies are homeomorphic

  • In this note we show that Cw(K ) and C p(K ) are not homeomorphic for any infinite compact metrizable C-space K, in particular, for any infinite finitedimensional compact metrizable space K

Read more

Summary

Recall that sets of the form

Where F ∈ [K ]

Fk is closed in
We claim that
Consider pr
Open questions
Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.