The implication from positive-set separation to submodule separation

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Let Conjecture c:one be the assertion that pure states separate the localized image of an \sA\sA-submodule from a point outside it, and let Conjecture c:two be the assertion that every closed \sA\sA-convex subset A⊂\sA+A\subset\sA_+ avoiding 00 admits a pure state uniformly positive on AA. The implication conjecture. Conjecture c:two implies Conjecture c:one. This is presented as a logical reduction: establishing the positive-set separation statement would establish the pure-state separation statement for submodules. The source does not claim that either conjecture has been proved.

References

Primary source

Jens Kaad and Matthias Lesch, “A local global principle for regular operators in Hilbert C*-modules”, arXiv:1107.2372 (2016).

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