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| 	Glossary of field theory  : ウィキペディア英語版 |   Glossary of field theory
  Field theory is the branch of mathematics in which fields are studied. This is a glossary of some terms of the subject. (See field theory (physics) for the unrelated field theories in physics.) ==Definition of a field== A field is a commutative ring (''F'',+, *) in which 0≠1 and every nonzero element has a multiplicative inverse.  In a field we thus can perform the operations addition, subtraction, multiplication, and division. The non-zero elements of a field ''F'' form an abelian group under multiplication; this group is typically denoted by ''F''×; The ring of polynomials in the variable ''x'' with coefficients in ''F'' is denoted by ''F''().
  抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Glossary of field theory」の詳細全文を読む
 
 
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