"quadratic field" meaning in All languages combined

See quadratic field on Wiktionary

Noun [English]

Forms: quadratic fields [plural]
Head templates: {{en-noun}} quadratic field (plural quadratic fields)
  1. (algebraic number theory) A number field that is an extension field of degree two over the rational numbers. Wikipedia link: quadratic field Hypernyms: number field Hyponyms: complex quadratic field, imaginary quadratic field, real quadratic field Related terms: quadratic integer, binary quadratic form, quadratic form Translations (number field that is an extension field of order 2 over the rational numbers): quadratischer Zahlkörper [masculine] (German)

Inflected forms

{
  "forms": [
    {
      "form": "quadratic fields",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "quadratic field (plural quadratic fields)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with German translations",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "1985, Erich Kaltofen, Heinrich Rolletschek, Arithmetic in Quadratic Fields with Unique Factorization, Bob F. Caviness (editor), EUROCAL '85: European Conference on Computer Algebra, Proceedings, Volume 2, Springer, LNCS 204, page 279,\nIn a quadratic field mathbf Q(√), D a squarefree integer, with class number 1 any algebraic integer can be decomposed uniquely into primes but for only 21 domains Euclidean algorithms are known."
        },
        {
          "ref": "1990, Alan Baker, Transcendental Number Theory, Cambridge University Press, page 47:",
          "text": "The foundations of the theory of binary quadratic forms, the forerunner of our modern theory of quadratic fields, were laid by Gauss in his famous Disquisitiones Arithmeticae.",
          "type": "quote"
        },
        {
          "ref": "2000, Henri Cohen, A Course in Computational Algebraic Number Theory, Springer, page 223:",
          "text": "In this chapter, we consider the simplest of all number fields that are different from #x5C;Q, i.e. quadratic fields. Since n#x3D;2#x3D;r#x5F;1#x2B;2r#x5F;2, the signature (r#x5F;1,r#x5F;2) of a quadratic field K is either (2,0), in which case we will speak of real quadratic fields, or (0,1), in which case we will speak of imaginary (or complex) quadratic fields. By Proposition 4.8.11 we know that imaginary quadratic fields are those of negative discriminant, and that real quadratic fields are those with positive discriminant.",
          "type": "quote"
        },
        {
          "text": "2007, H. M. Stark, The Gauss Class-Number Problems, William Duke, Yuri Tschinkel (editors), Analytic Number Theory: A Tribute to Gauss and Dirichlet, American Mathematical Society, Clay Mathematics Institute, page 247,\nSince Dedekind's time, these conjectures have been phrased in the language of quadratic fields. […] Throughout this paper, k= Q (√d) will be a quadratic field of discriminant d and h(k) or sometimes h(d) will be the class-number of k."
        }
      ],
      "glosses": [
        "A number field that is an extension field of degree two over the rational numbers."
      ],
      "hypernyms": [
        {
          "word": "number field"
        }
      ],
      "hyponyms": [
        {
          "word": "complex quadratic field"
        },
        {
          "word": "imaginary quadratic field"
        },
        {
          "word": "real quadratic field"
        }
      ],
      "id": "en-quadratic_field-en-noun-3Xo0w9UO",
      "links": [
        [
          "number field",
          "number field"
        ],
        [
          "extension field",
          "extension field"
        ],
        [
          "degree",
          "degree"
        ],
        [
          "rational numbers",
          "rational numbers"
        ]
      ],
      "qualifier": "algebraic number theory",
      "raw_glosses": [
        "(algebraic number theory) A number field that is an extension field of degree two over the rational numbers."
      ],
      "related": [
        {
          "word": "quadratic integer"
        },
        {
          "word": "binary quadratic form"
        },
        {
          "word": "quadratic form"
        }
      ],
      "translations": [
        {
          "code": "de",
          "lang": "German",
          "sense": "number field that is an extension field of order 2 over the rational numbers",
          "tags": [
            "masculine"
          ],
          "word": "quadratischer Zahlkörper"
        }
      ],
      "wikipedia": [
        "quadratic field"
      ]
    }
  ],
  "word": "quadratic field"
}
{
  "forms": [
    {
      "form": "quadratic fields",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "quadratic field (plural quadratic fields)",
      "name": "en-noun"
    }
  ],
  "hypernyms": [
    {
      "word": "number field"
    }
  ],
  "hyponyms": [
    {
      "word": "complex quadratic field"
    },
    {
      "word": "imaginary quadratic field"
    },
    {
      "word": "real quadratic field"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "quadratic integer"
    },
    {
      "word": "binary quadratic form"
    },
    {
      "word": "quadratic form"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with German translations"
      ],
      "examples": [
        {
          "text": "1985, Erich Kaltofen, Heinrich Rolletschek, Arithmetic in Quadratic Fields with Unique Factorization, Bob F. Caviness (editor), EUROCAL '85: European Conference on Computer Algebra, Proceedings, Volume 2, Springer, LNCS 204, page 279,\nIn a quadratic field mathbf Q(√), D a squarefree integer, with class number 1 any algebraic integer can be decomposed uniquely into primes but for only 21 domains Euclidean algorithms are known."
        },
        {
          "ref": "1990, Alan Baker, Transcendental Number Theory, Cambridge University Press, page 47:",
          "text": "The foundations of the theory of binary quadratic forms, the forerunner of our modern theory of quadratic fields, were laid by Gauss in his famous Disquisitiones Arithmeticae.",
          "type": "quote"
        },
        {
          "ref": "2000, Henri Cohen, A Course in Computational Algebraic Number Theory, Springer, page 223:",
          "text": "In this chapter, we consider the simplest of all number fields that are different from #x5C;Q, i.e. quadratic fields. Since n#x3D;2#x3D;r#x5F;1#x2B;2r#x5F;2, the signature (r#x5F;1,r#x5F;2) of a quadratic field K is either (2,0), in which case we will speak of real quadratic fields, or (0,1), in which case we will speak of imaginary (or complex) quadratic fields. By Proposition 4.8.11 we know that imaginary quadratic fields are those of negative discriminant, and that real quadratic fields are those with positive discriminant.",
          "type": "quote"
        },
        {
          "text": "2007, H. M. Stark, The Gauss Class-Number Problems, William Duke, Yuri Tschinkel (editors), Analytic Number Theory: A Tribute to Gauss and Dirichlet, American Mathematical Society, Clay Mathematics Institute, page 247,\nSince Dedekind's time, these conjectures have been phrased in the language of quadratic fields. […] Throughout this paper, k= Q (√d) will be a quadratic field of discriminant d and h(k) or sometimes h(d) will be the class-number of k."
        }
      ],
      "glosses": [
        "A number field that is an extension field of degree two over the rational numbers."
      ],
      "links": [
        [
          "number field",
          "number field"
        ],
        [
          "extension field",
          "extension field"
        ],
        [
          "degree",
          "degree"
        ],
        [
          "rational numbers",
          "rational numbers"
        ]
      ],
      "qualifier": "algebraic number theory",
      "raw_glosses": [
        "(algebraic number theory) A number field that is an extension field of degree two over the rational numbers."
      ],
      "wikipedia": [
        "quadratic field"
      ]
    }
  ],
  "translations": [
    {
      "code": "de",
      "lang": "German",
      "sense": "number field that is an extension field of order 2 over the rational numbers",
      "tags": [
        "masculine"
      ],
      "word": "quadratischer Zahlkörper"
    }
  ],
  "word": "quadratic field"
}

Download raw JSONL data for quadratic field meaning in All languages combined (3.3kB)


This page is a part of the kaikki.org machine-readable All languages combined dictionary. This dictionary is based on structured data extracted on 2024-12-21 from the enwiktionary dump dated 2024-12-04 using wiktextract (d8cb2f3 and 4e554ae). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.

If you use this data in academic research, please cite Tatu Ylonen: Wiktextract: Wiktionary as Machine-Readable Structured Data, Proceedings of the 13th Conference on Language Resources and Evaluation (LREC), pp. 1317-1325, Marseille, 20-25 June 2022. Linking to the relevant page(s) under https://kaikki.org would also be greatly appreciated.