Ideal

GPTKB entity

Statements (36)
Predicate Object
gptkbp:instanceOf gptkb:mathematical_concept
gptkbp:definedIn Subset of a ring
gptkbp:generalizes Normal subgroup (in group theory)
https://www.w3.org/2000/01/rdf-schema#label Ideal
gptkbp:introduced gptkb:Richard_Dedekind
gptkbp:notation I, J, K (commonly used symbols)
gptkbp:property Closed under addition
Every ring has at least two ideals: zero and unit ideal
Absorbs multiplication by ring elements
Finitely generated in Noetherian rings
Generated by a subset
Intersection of ideals is an ideal
Maximal ideal is maximal under inclusion
Prime ideal has special properties
Principal ideal generated by a single element
Product of ideals is an ideal
Sum of ideals is an ideal
Used in the definition of algebraic varieties
Used to define factor rings
gptkbp:relatedTo gptkb:Maximal_ideal
gptkb:Prime_ideal
gptkb:Principal_ideal
gptkb:Quotient_ring
Module
Unit ideal
Zero ideal
gptkbp:type gptkb:Left_ideal
gptkb:Two-sided_ideal
Right ideal
gptkbp:usedIn gptkb:Number_theory
gptkb:Algebraic_geometry
gptkb:Commutative_algebra
gptkb:Ring_theory
gptkbp:bfsParent gptkb:Ben_Crompton
gptkb:Henry_Normal
gptkbp:bfsLayer 5