Talk:Schaefer's dichotomy theorem: Difference between revisions

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I replaced the reference to the Bulatov-Dalmau paper with the reference to the Creignou-Hermann paper, where dichotomy result for counting boolean CSP appears first. — Preceding unsigned comment added by 193.55.176.1 (talk) 15:28, 7 March 2013 (UTC)[reply]

That’s right. However, the section needs more reorganization: the Creignou and Hermann #SAT dichotomy is simply that the affine case is in P, and everything else is #P-complete. The stuff about Mal'tsev polynomials (which comes from the Bulatov and Dalmau paper) is only relevant for non-Boolean CSP’s, but then it is no longer a sufficient condition.—Emil J. 16:58, 7 March 2013 (UTC)[reply]

I've taken a crack at this reorganization, splitting into binary and nonbinary paragraphs and citing the relevant paper in each. Erik Demaine (talk) 00:01, 17 November 2023 (UTC)[reply]

@@ Line 3: / Line 3: @@
 I replaced the reference to the Bulatov-Dalmau paper with the reference to the Creignou-Hermann paper, where dichotomy result for counting boolean CSP appears first.  <span style="font-size: smaller;" class="autosigned">— Preceding [[Wikipedia:Signatures|unsigned]] comment added by [[Special:Contributions/193.55.176.1|193.55.176.1]] ([[User talk:193.55.176.1|talk]]) 15:28, 7 March 2013 (UTC)</span><!-- Template:Unsigned IP --> <!--Autosigned by SineBot-->
 :That’s right. However, the section needs more reorganization: the Creignou and Hermann #SAT dichotomy is simply that the affine case is in P, and everything else is #P-complete. The stuff about Mal'tsev polynomials (which comes from the Bulatov and Dalmau paper) is only relevant for non-Boolean CSP’s, but then it is no longer a sufficient condition.—[[User:EmilJ|Emil]]&nbsp;[[User talk:EmilJ|J.]] 16:58, 7 March 2013 (UTC)
+::I've taken a crack at this reorganization, splitting into binary and nonbinary paragraphs and citing the relevant paper in each. [[User:Edemaine|Erik Demaine]] ([[User talk:Edemaine|talk]]) 00:01, 17 November 2023 (UTC)