Gaussian rationals ℚ(i)
E157390
Gaussian rationals ℚ(i) are the field of complex numbers whose real and imaginary parts are rational, formed by adjoining the imaginary unit i to the rational numbers.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Gaussian rationals ℚ(i) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1382520 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
Target entity: Gaussian rationals ℚ(i) Context triple: [Gaussian integers, fieldOfFractions, Gaussian rationals ℚ(i)]
-
A.
Gaussian integers
Gaussian integers are complex numbers whose real and imaginary parts are both integers, forming a lattice in the complex plane with important applications in number theory and algebra.
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B.
Gauss’s lemma in number theory
Gauss’s lemma in number theory is a result that relates the Legendre symbol to the number of sign changes in a certain sequence of multiples, providing a practical criterion for determining quadratic residues modulo an odd prime.
-
C.
Gauss’s constant
Gauss’s constant is a mathematical constant arising in number theory and complex analysis, particularly in connection with the lemniscate and elliptic functions.
-
D.
Fermat's theorem on sums of two squares
Fermat's theorem on sums of two squares is a result in number theory stating exactly which prime numbers (and, more generally, which integers) can be expressed as the sum of two perfect squares.
-
E.
Disquisitiones Arithmeticae
Disquisitiones Arithmeticae is a foundational 1801 treatise on number theory that systematically developed the subject and introduced many of its central concepts and methods.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Gaussian rationals ℚ(i) Target entity description: Gaussian rationals ℚ(i) are the field of complex numbers whose real and imaginary parts are rational, formed by adjoining the imaginary unit i to the rational numbers.
-
A.
Gaussian integers
Gaussian integers are complex numbers whose real and imaginary parts are both integers, forming a lattice in the complex plane with important applications in number theory and algebra.
-
B.
Gauss’s lemma in number theory
Gauss’s lemma in number theory is a result that relates the Legendre symbol to the number of sign changes in a certain sequence of multiples, providing a practical criterion for determining quadratic residues modulo an odd prime.
-
C.
Gauss’s constant
Gauss’s constant is a mathematical constant arising in number theory and complex analysis, particularly in connection with the lemniscate and elliptic functions.
-
D.
Fermat's theorem on sums of two squares
Fermat's theorem on sums of two squares is a result in number theory stating exactly which prime numbers (and, more generally, which integers) can be expressed as the sum of two perfect squares.
-
E.
Disquisitiones Arithmeticae
Disquisitiones Arithmeticae is a foundational 1801 treatise on number theory that systematically developed the subject and introduced many of its central concepts and methods.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
Euclidean domain (as a field)
ⓘ
algebraic number field ⓘ field ⓘ number field ⓘ quadratic extension of ℚ ⓘ subfield of ℂ ⓘ ℚ-vector space ⓘ |
| adjoinsElement | i ⓘ |
| baseField | ℚ ⓘ |
| characteristic | 0 ⓘ |
| contains | ℚ ⓘ |
| containsElement |
0
ⓘ
1 ⓘ i ⓘ |
| containsRootsOfUnity | 4th roots of unity ⓘ |
| definedAs | {a+bi ∈ ℂ | a,b ∈ ℚ} ⓘ |
| degreeOver | 2 over ℚ ⓘ |
| dimensionAsVectorSpaceOverℚ | 2 ⓘ |
| discriminantOverℚ | -4 ⓘ |
| embedsInto | ℂ ⓘ |
| fixedFieldOfComplexConjugation | ℚ ⓘ |
| fractionFieldOf | Gaussian integers ℤ[i] ⓘ |
| GaloisGroupOver | cyclic group of order 2 ⓘ |
| generatedBy |
i
ⓘ
ℚ ⓘ |
| hasAutomorphism | complex conjugation ⓘ |
| hasBasisOverℚ | {1,i} ⓘ |
| hasComplexEmbeddings | 2 ⓘ |
| hasRealEmbeddings | 0 ⓘ |
| hasSymbol | ℚ(i) ⓘ |
| isAlgebraicOver | ℚ ⓘ |
| isClosedUnder |
addition
ⓘ
additive inverses ⓘ multiplication ⓘ multiplicative inverses (for nonzero elements) ⓘ |
| isComplexMultiplicationField | yes, for elliptic curves with CM by ℤ[i] ⓘ |
| isCyclotomicField | ℚ(ζ₄) ⓘ |
| isGaloisExtensionOf | ℚ ⓘ |
| isSubfieldOf | ℂ ⓘ |
| isSubsetOf | Gaussian integers ℤ[i] tensored with ℚ ⓘ |
| isTotallyComplex | true ⓘ |
| minimalPolynomialOfAdjoinedElement | x²+1 over ℚ ⓘ |
| prime2Ramification | 2 is ramified in ℚ(i) ⓘ |
| primeInertness | odd prime p ≡ 3 mod 4 is inert in ℚ(i) ⓘ |
| primeSplitting | odd prime p ≡ 1 mod 4 splits in ℚ(i) ⓘ |
| ringOfIntegers | ℤ[i] ⓘ |
| signature | (0,1) ⓘ |
| unitGroupOfRingOfIntegers | {±1,±i} ⓘ |
| usedIn |
algebraic number theory
ⓘ
complex multiplication theory ⓘ quadratic forms over ℚ ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Subject: Gaussian rationals ℚ(i) Description of subject: Gaussian rationals ℚ(i) are the field of complex numbers whose real and imaginary parts are rational, formed by adjoining the imaginary unit i to the rational numbers.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.