SZK ⊆ coAM

SZK is contained in coAM.

Statement

Migrated verbatim from co-arthur-merlin § Known relationships:

  • : statistical zero-knowledge problems can be argued from both sides with Arthur-Merlin protocols — TODO citation.

Migrated verbatim from statistical-zero-knowledge § Known relationships:

  • SZK ⊆ AM ∩ coAM, so if AM = coAM then SZK ⊆ AM; in particular SZK does not contain NP-complete problems unless PH collapses

Notes

source: folklore: the claim carried no citation on the page it was migrated from, and none was invented.

class: unstated: no citing page says which notion of reduction is meant. Recording a class the wiki does not state would add a claim.

class: free because a containment between complexity classes is proved by any argument at all; the reduction-class axis does not discriminate here, and unstated would wrongly suggest the information is missing.

Recorded during migration and not fixed — these are claims about the source text, not changes to it:

  • Explicit ‘TODO citation’; Fortnow 1989 would be the standard source for this half.
  • SZK not wikilinked.
  • Uncited, same as the previous sub-edge.
  • ‘coAM’ is bare text although content/Complexity/co-arthur-merlin.md exists and \classcoAM is defined.