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・ String Quartet No. 3 (Beethoven)
・ String Quartet No. 3 (Brahms)
・ String Quartet No. 3 (Carter)
・ String Quartet No. 3 (Dvořák)
・ String Quartet No. 3 (Mendelssohn)
・ String Quartet No. 3 (Nielsen)
・ String Quartet No. 3 (Piston)
・ String Quartet No. 3 (Rochberg)
・ String Quartet No. 3 (Rouse)
・ String Quartet No. 3 (Schubert)
・ String Quartet No. 3 (Shostakovich)
・ String Quartet No. 3 (Spohr)
・ String girdling Earth
・ String grammar
・ String graph
String group
・ String instrument
・ String instrument repertoire
・ String interning
・ String interpolation
・ String kernel
・ String Lake
・ String Lake Comfort Station
・ String Lake Trail
・ String Lakes
・ String literal
・ String metric
・ String noise
・ String octet
・ String of Hits


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String group : ウィキペディア英語版
String group

In topology, a branch of mathematics, a string group is an infinite-dimensional group String(''n'') introduced by as a 3-connected cover of a spin group.
A string manifold is a manifold with a lifting of its frame bundle to a string group bundle. This means that in addition to being able to define holonomy along paths, one can also define holonomies for surfaces going between strings.
There is a short exact sequence of topological groups
:0\rightarrow K(Z,2)\rightarrow \text(n)\rightarrow \text(n)\rightarrow 0
where ''K''(Z, 2) is an Eilenberg–MacLane space and Spin(''n'') is a spin group.
==References==

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抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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