An ideal class is an element of the ideal class group, represented by a nonzero fractional ideal. Two fractional ideals represent the same class exactly when their quotient is a principal ideal.
Ancestors (6)
Incoming links (36)
- Class group of Q of cube root of three
- Class number divisibility for a CM extension
- Class number one for Q square root of fourteen
- Cyclotomic unit index formula
- Hilbert class field
- Ideal class
- Ideal class group of Q of square root of minus one hundred sixty-three
- Minkowski's bound
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- Prime representation via an ideal class
- Ramified prime classes for discriminant minus four d
- Unbounded element orders in imaginary quadratic ideal class groups
- Weak approximation for number fields
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