Tamagawa number
id:
tamagawa-number-301-7515513
title:
Tamagawa number
text:
In mathematics, the Tamagawa number τ of a semisimple algebraic group defined over a global field k is the measure of G / G , where A is the adele ring of k. Tamagawa numbers were introduced by Tamagawa (1966), and named after him by Weil (1959). Tsuneo Tamagawa's observation was that, starting from an invariant differential form ω on G, defined over k, the measure involved was well-defined: while ω could be replaced by cω with c a non-zero element of k , the product formula for valuations in k
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original url:
https://en.wikipedia.org/wiki/Tamagawa_number
date created:
date modified:
2023-12-16T14:13:00Z
main entity:
{"identifier":"Q60520101","url":"https://www.wikidata.org/entity/Q60520101"}
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13
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