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is there group named Shafarevich-Tate group I,II?why Shafarevich-Tate group III is named?

asked 2013-10-22 22:54:44 -0500

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is there group named Shafarevich-Tate group I,II?why Shafarevich-Tate group III is named?

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answered 2013-12-26 01:43:22 -0500

The Tate-Shafarevich group is denoted by the cyrillic letter "sha" (like Shafarevich), which looks a bit like III, but it's not a roman numeral three. See Wikipedia.

Side note: this is not at all a Sage question, and you could have found the answer by a simple search on your favourite search engine or on Wikipedia.

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thank you very much! I have never known cyrillic letter!

cjsh gravatar imagecjsh ( 2013-12-29 16:02:51 -0500 )edit

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Asked: 2013-10-22 22:54:44 -0500

Seen: 192 times

Last updated: Dec 29 '13