User:Boris Tsirelson: Difference between revisions

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Professor of mathematics; [[Boris Tsirelson|details]].
{{AccountNotLive}}
Also a Wikipedian; [http://en.wikipedia.org/wiki/User:Tsirel details].
<div style="text-align: center;"><span style="border: 0.5em solid rgb(200,200,200); padding: 0.5em;">This author is no longer active on the ''Citizendium''</span></div><br />


==Articles that I created==
Boris Tsirelson died on 21 January, 2020 (aged nearly 70).


*[[Non-Borel set]]
[[Boris Tsirelson|Professor of mathematics]].
*[[Conditioning (probability)]]
Editor of [http://www.encyclopediaofmath.org/index.php/User:Boris_Tsirelson Encyclopedia of Mathematics], [http://en.wikipedia.org/wiki/User:Tsirel Wikipedia] and [http://knowino.org/wiki/User:Boris_Tsirelson Knowino].
*[[Space (mathematics)]]
*[[Probability space]]
*[[Theory (mathematics)]]


==Articles I've contributed to==


*[[Plane (geometry)‎]]
<!--[[Category:CZ Authors|Tsirelson, Boris]][[Category:Mathematics Authors|Tsirelson, Boris]][[Category:Mathematics Editors|Tsirelson, Boris]]
*[[Line (geometry)]] <small>approved</small>
{{DEFAULTSORT:Tsirelson, Boris}}-->
 
==Articles approved by me==
 
*[[Neighbourhood (topology)]]
*[[Countable set]]
*[[Geometric sequence]]
*[[Covariance]]
*[[Set theory]]
 
==On approval==
 
===To a reader===
 
Trust the information in the articles approved by me as much as you trust the information in mathematical textbooks. (In both cases errors are possible but quite rare.)
 
===To an author (editor, constable etc)===
 
Here is my opinion, probably controversial. All that is only about mathematical articles; about others I have no opinion.
 
Articles may be compared according to: importance of the topic; accessibility; scope; coherence, and many other criteria. Best articles may be rewarded somehow. However, the approval is not a kind of reward! The approval mechanism is ''the'' feature of CZ. If a trustworthy article remains "unapproved, subject to disclaimer, not to be cited", it is a loss for readers and CZ.
 
<blockquote>"Some products — such as new drugs and complex medical devices — must be proven safe and effective before companies can put them on the market. ... At the heart of all FDA's medical product evaluation decisions is a judgment about whether a new product's benefits to users will outweigh its risks." ([http://www.fda.gov/NewsEvents/ProductsApprovals/ucm106288.htm About FDA Product Approval])</blockquote>
 
Approval of a drug is not a sign of excellence, nor a guaranteed absence of risk. It is rather a compromise. The same holds for our approvals of articles.
 
An approved article can and should be developed further. But (unlike software firms) we should not create versions like 5.3.7, nor even 1.1; after version 1 we should usually proceed toward version 2 (maybe after a year). Only in some regrettable cases version 1.1 becomes necessary.
 
Improvements of any kind to any article are welcome from everyone at any time, before and after the first approval. They should accumulate toward the next version. A burst of collective activity just before approval, is it a good idea? It can create fuss and bustle, and make an article somewhat mosaic.
 
<small>Compare it to our [[CZ Talk:Approval Standards|Approval Standards Draft for discussion]]: "Approval should not be denied on the grounds that the article has omissions, unless these undermine the overall balance and accuracy of the article.
 
Approval is an ongoing process; even if an editor believes that the article has some significant shortcomings, then the article may still be approved, but the editor should declare any criticisms or reservations at the top of the article Talk page to direct further improvements to the article."</small>
 
Approval is not a festival of outstanding excellence but a routine stage of development.
 
==A quote==
 
It is better for someone to never come to CZ than for them to come to CZ, get a bad first impression and never come back. --Chris Key 01:29, 18 April 2010 (UTC)
 
==Notes for myself==
 
===Links===
 
[[User:Boris_Tsirelson/Sandbox1|Sandbox1]]
 
[[Talk:Macromolecular_chemistry]]
+ [[CZ:Approval Process]]
+ [[CZ Talk:Approval Standards]]
+ [[User talk:Approvals Manager]]
 
[[Compact space]]
+ [[Vector space]]
+ [[Uniform space]]
+ [[Cardinal number]]
+ [[Necessary and sufficient]]
+ [[Quadratic equation]]
 
[[Measure (mathematics)]]
 
[[CZ:Mathematics Workgroup]]
+ [[:Category:Mathematics Authors]]
+ [[CZ:Formatting mathematics]]
+ [[CZ:Dozen Essentials]]
+ [[CZ:Introduction to CZ for Wikipedians]]
+ [[CZ:Quick Start]]
+ [[CZ:Home]]
+ [[CZ:Article Mechanics]]
+ [[CZ:How to convert Wikipedia articles to Citizendium articles]]
+ [[CZ:Subpages]]
+ [[CZ:How to edit an article]]
+ [[CZ:The Article Checklist]]
+ [[CZ:Using the Subpages template]]
+ [[CZ:Start article with subpages]]
+ [[CZ:Bibliography]]
+ [[CZ:Citation style]]
+ [[CZ:How to edit an article]]
+ [[CZ:How to make tables]]
+ [[CZ:Images]]
+ [[CZ:Templates]]
 
[[CZ:Statistics]]
 
[[CZ:Core Articles/Mathematics]]
+ [[CZ:Core Articles]]
 
[[User:Jitse Niesen]]
+ [[User:Michael Hardy]]
+ [[User:Milton Beychok]]
+ [[User:Peter Schmitt]]
+ [[User:Hans Adler]]
+ [[User:Mark Wainwright]]
 
[[Talk:Boiling_point/Draft]]
 
[[Complex number]]
+ [[Prime number]]
+ [[Continuum hypothesis]]
+ [[Neighbourhood (topology)]]
+ [[Probability distribution]]
+ [[Entropy of a probability distribution]]
 
[[Sigma algebra]]
+ [[Measure (mathematics)]]
+ [[Measure theory]]
+ [[Ito process]]
+ [[Martingale]]
+ [[Stochastic process]]
+ [[Measure space]]
+ [[Borel set]]
+ [[Measurable space]]
+ [[Conditional probability]]
 
[[Scientific method]]
 
[http://www.dpmms.cam.ac.uk/~wtg10/definition.html definition]
+ [http://ways.org/en/topics/citizendium WAY]
+ [http://rationalwiki.org/wiki/Citizendium RationalWiki]
 
===Know-how===
 
{{nowrap|''ax+by+cz''<nowiki>=</nowiki>''d''.}} — <code><nowiki>{{nowrap|''ax+by+cz''<nowiki>=<&#047;nowiki>''d''.}}</nowiki></code>
 
 
[[Category:CZ Authors|Tsirelson, Boris]][[Category:Mathematics Authors|Tsirelson, Boris]][[Category:Mathematics Editors|Tsirelson, Boris]]
{{DEFAULTSORT:Tsirelson, Boris}}

Latest revision as of 03:25, 22 November 2023


The account of this former contributor was not re-activated after the server upgrade of March 2022.


This author is no longer active on the Citizendium


Boris Tsirelson died on 21 January, 2020 (aged nearly 70).

Professor of mathematics. Editor of Encyclopedia of Mathematics, Wikipedia and Knowino.


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