About: G-ring

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In commutative algebra, a G-ring or Grothendieck ring is a Noetherian ring such that the map of any of its local rings to the completion is regular (defined below). Almost all Noetherian rings that occur naturally in algebraic geometry or number theory are G-rings, and it is quite hard to construct examples of Noetherian rings that are not G-rings. The concept is named after Alexander Grothendieck. A ring that is a both G-ring and a J-2 ring is called a quasi-excellent ring, and if in addition it is universally catenary it is called an excellent ring.

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  • In commutative algebra, a G-ring or Grothendieck ring is a Noetherian ring such that the map of any of its local rings to the completion is regular (defined below). Almost all Noetherian rings that occur naturally in algebraic geometry or number theory are G-rings, and it is quite hard to construct examples of Noetherian rings that are not G-rings. The concept is named after Alexander Grothendieck. A ring that is a both G-ring and a J-2 ring is called a quasi-excellent ring, and if in addition it is universally catenary it is called an excellent ring. (en)
  • In de commutatieve algebra, een deelgebied van de wiskunde, is een Grothendieck-ring (of G-ring) een Noetherse ring zodanig dat de afbeelding van enige van haar lokale ringen op de regelmatig zijn gedefinieerd. Bijna alle Noetherse ringen die van nature in de algebraïsche meetkunde of de getaltheorie voorkomen zijn Grothendieck-ringen, en het is heel moeilijk om voorbeelden van Noetherse ringen te construeren die geen Grothendieck-ringen zijn. Het concept is vernoemd naar de Franse wiskundige Alexander Grothendieck. (nl)
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  • In commutative algebra, a G-ring or Grothendieck ring is a Noetherian ring such that the map of any of its local rings to the completion is regular (defined below). Almost all Noetherian rings that occur naturally in algebraic geometry or number theory are G-rings, and it is quite hard to construct examples of Noetherian rings that are not G-rings. The concept is named after Alexander Grothendieck. A ring that is a both G-ring and a J-2 ring is called a quasi-excellent ring, and if in addition it is universally catenary it is called an excellent ring. (en)
  • In de commutatieve algebra, een deelgebied van de wiskunde, is een Grothendieck-ring (of G-ring) een Noetherse ring zodanig dat de afbeelding van enige van haar lokale ringen op de regelmatig zijn gedefinieerd. Bijna alle Noetherse ringen die van nature in de algebraïsche meetkunde of de getaltheorie voorkomen zijn Grothendieck-ringen, en het is heel moeilijk om voorbeelden van Noetherse ringen te construeren die geen Grothendieck-ringen zijn. Het concept is vernoemd naar de Franse wiskundige Alexander Grothendieck. (nl)
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  • G-ring (en)
  • Grothendieck-ring (nl)
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