Quadratic fields

GPTKB entity

Statements (29)
Predicate Object
gptkbp:instanceOf gptkb:mathematical_concept
gptkbp:automorphismGroup Cyclic group of order 2
gptkbp:contains Rational numbers
gptkbp:defines A field extension of the rational numbers of degree 2
gptkbp:degree 2
gptkbp:discriminant d
gptkbp:example Q(√5)
Q(√-1)
Q(√-3)
Q(√2)
gptkbp:GaloisGroup Cyclic group of order 2
gptkbp:hasProperty Every element is of the form a + b√d, with a, b in Q
https://www.w3.org/2000/01/rdf-schema#label Quadratic fields
gptkbp:notation Q(√d)
gptkbp:relatedTo gptkb:Hilbert_class_field
gptkb:Pell's_equation
Quadratic forms
Ideal class group
Units in number fields
gptkbp:ringOfIntegers Quadratic integer ring
gptkbp:studiedIn gptkb:Algebraic_number_theory
gptkbp:subclassOf Number field
gptkbp:subspecies Imaginary quadratic field
Real quadratic field
gptkbp:usedIn gptkb:Class_field_theory
Cryptography
Elliptic curves
gptkbp:bfsParent gptkb:Algebraic_Number_Fields
gptkbp:bfsLayer 7