Talk:Zariski topology

closed point
It would be helpful to have an explanation of what a closed point is. Tkuvho (talk) 12:22, 9 February 2011 (UTC)


 * It's a point x such that {x} is closed. --Zundark (talk) 16:29, 9 February 2011 (UTC)

Assessment comment
Substituted at 02:42, 5 May 2016 (UTC)

Sober property
I edited the article to mention that the Zariski topology was sober. The edit got reverted because "spectral space is not defined", when the section was literally about the spectra of a ring. The sober property is key to how the Zariski topology is typically used, because it is the strongest separation property that it satisfies, and it is closely related to generic points which are mentioned a lot in the article. Saolof (talk) 17:18, 17 August 2021 (UTC)
 * This article is not for specialists of algebraic geometry or topology. It is for people desiring learning on Zariski topology. So, if the sober property is mentioned, its definition must be recalled, the Zariski topologies that are sober must be clearly identified (a classical algebraic variety is not sober), and the reasons for mentioning this property must be given. Also, as "sober" is a purely topological property, it is clearly invariant under homeomorphisms. So the use of "spectral space" (without any link) instead of "spectrum of a ring" (the subject of the section) is pedantry, as it serves only to make the article more difficult to understand to non-experts. D.Lazard (talk) 08:52, 18 August 2021 (UTC)