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Mathematics
Algebraic Geometry
1. Foundations of Algebraic Geometry
2. Polynomial Rings and Commutative Algebra
3. Gröbner Bases
4. Affine Algebraic Geometry
5. Projective Algebraic Geometry
6. Rational Maps and Birational Geometry
7. Local Properties and Singularities
8. Introduction to Schemes
9. Coherent Sheaves and Cohomology
10. Divisors and Line Bundles
11. Algebraic Curves
12. Algebraic Surfaces
13. Advanced Topics
Affine Algebraic Geometry
Affine Space
Definition of Affine n-Space
Coordinate Functions
Points over Different Fields
Morphisms between Affine Spaces
Algebraic Sets in Affine Space
Definition of Algebraic Sets
Zero Sets of Polynomials
Solution Sets of Polynomial Systems
Examples and Basic Properties
The Ideal of an Algebraic Set
Vanishing Ideals
Generators of Vanishing Ideals
Properties of Vanishing Ideals
Radical Ideals
Definition and Properties
Radical of an Ideal
Characterizations
Hilbert's Nullstellensatz
Weak Nullstellensatz
Statement
Proof Outline
Consequences
Strong Nullstellensatz
Statement
Proof Strategy
Correspondence between Algebraic Sets and Radical Ideals
Bijective Correspondence
Geometric and Algebraic Perspectives
The Zariski Topology
Definition on Affine Space
Closed Sets and Basic Properties
Open Sets and Basis
Topological Properties
Non-Hausdorff Nature
Compactness Properties
Irreducibility
Characterizations
Irreducible Algebraic Sets
Definition and Examples
Decomposition into Irreducible Components
Uniqueness of Decomposition
Connection to Prime Ideals
Affine Varieties
Examples of Affine Varieties
Irreducible Components
The Coordinate Ring
Definition and Construction
Polynomial Functions on Varieties
Properties as k-algebra
Finitely Generated k-algebras
Correspondence with Affine Varieties
Morphisms of Affine Varieties
Regular Functions
Ring of Regular Functions
Polynomial Maps
Definition and Examples
Induced Maps on Coordinate Rings
Morphisms between Varieties
Functoriality
Composition of Morphisms
Isomorphisms
Definition and Criteria
Dimension Theory for Affine Varieties
Krull Dimension
Chains of Prime Ideals
Transcendence Degree
Field Extensions
Connection to Dimension
Dimension of Intersections
Dimension Formula
Applications and Examples
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5. Projective Algebraic Geometry