Pith. sign in

REVIEW

A missing theorem on dual spaces

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2405.01133 v3 pith:ETXNK5QJ submitted 2024-05-02 math.FA math.CAmath.OA

classification math.FAmath.CAmath.OA
keywords spacebanachcomplexpredualspacesansweroperatorpossesses
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

We answer in the affirmative the surprisingly difficult questions: If a complex Banach space possesses a real predual X, then is X a complex Banach space? If a complex Banach space possesses a real predual, then does it have a complex predual? We also answer the analogous questions for operator spaces, that is spaces of operators on a Hilbert space, up to complete isometry. Indeed we use operator space methods to solve the Banach space question above.

Discussion (0). Continue with ORCID to comment.

Pith tools