Difference between revisions of "Math 686R: Topics in Algebraic Number Theory."
(→Minimal learning outcomes) |
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#* Class number | #* Class number | ||
#* Finiteness of class number | #* Finiteness of class number | ||
| − | #* Dedekind's Unique Factorization Theorem for ideals of a number field | + | #* Dedekind's Unique Factorization Theorem for ideals of a number field |
#Geometry of numbers: | #Geometry of numbers: | ||
#* Minkowski's lemma on lattice points | #* Minkowski's lemma on lattice points | ||
#* Logarithmic spaces | #* Logarithmic spaces | ||
#* Dirichlet's Unit Theorem for the units of the ring of integers of a number field | #* Dirichlet's Unit Theorem for the units of the ring of integers of a number field | ||
| − | #* Theorems of Minkowski and of Hermite on discriminants of number fields | + | #* Theorems of Minkowski and of Hermite on discriminants of number fields |
#Ramification Theory: | #Ramification Theory: | ||
| − | #* Relative extensions | + | #* Relative extensions |
#* Relative discriminant and Dedekind's criterion for ramification in terms of discriminant | #* Relative discriminant and Dedekind's criterion for ramification in terms of discriminant | ||
#* Higher ramification groups | #* Higher ramification groups | ||
| − | #* Hilbert theory of ramification | + | #* Hilbert theory of ramification |
#Splitting of Primes: | #Splitting of Primes: | ||
#* Frobenius map | #* Frobenius map | ||
| Line 53: | Line 53: | ||
#* Splitting of primes in Abelian extensions in terms of Artin map | #* Splitting of primes in Abelian extensions in terms of Artin map | ||
#* Rudimentary class field theory | #* Rudimentary class field theory | ||
| − | #* Examples - quadratic and cyclotomic extensions | + | #* Examples - quadratic and cyclotomic extensions |
| − | #Arithmetic of cyclotomic fields, and the Kronecker-Weber Theorem | + | #Arithmetic of cyclotomic fields, and the Kronecker-Weber Theorem |
#Dedekind zeta function | #Dedekind zeta function | ||
| − | #* The class number formula - the formula which relates the residue of the Dedekind zeta function of a number field at s=1 to its class number, regulator and discriminant | + | #* The class number formula - the formula which relates the residue of the Dedekind zeta function of a number field at s=1 to its class number, regulator and discriminant |
</div> | </div> | ||
Revision as of 10:16, 29 October 2010
Contents
Catalog Information
Title
Topics in Algebraic Number Theory.
Credit Hours
3
Prerequisite
Description
Current topics of research interest.
Desired Learning Outcomes
To gain familiarity with working in general settings, e.g. Abelian varieties over number fields, not just of elliptic curves over rationals.
Prerequisites
A sound understanding of basic concepts of complex analysis, abstract algebra and number theory, at the level of Math 352, 371, 372 and 487 may suffice.
Minimal learning outcomes
1. Generalization of the Unique Factorization Theorem from rationals to number fields: Basic Definitions - number fields, algebraic integers in a number field, integral bases, discriminant, norms of ideals, finiteness of ideals of bounded norm, class number, finiteness of class number, Dedekind's Unique Factorization Theorem for ideals of a number field. 2. Geometry of numbers: Minkowski's lemma on lattice points, Logarithmic spaces, Dirichlet's Unit Theorem for the units of the ring of integers of a number field, theorems of Minkowski and of Hermite on discriminants of number fields. 3. Ramification Theory: Relative extensions, relative discriminant and Dedekind's criterion for ramification in terms of discriminant, higher ramification groups and Hilbert theory of ramification. 4 Splitting of Primes: Frobenius map, Artin symbol, Artin map and splitting of primes in Abelian extensions in terms of Artin map, rudimentary class field theory, Examples - quadratic and cyclotomic extensions. 5. Arithmetic of cyclotomic fields, the Kronecker-Weber Theorem. 6. Dedekind zeta function, the class number formula - the formula which relates the residue of the Dedekind zeta function of a number field at s=1 to its class number, regulator and discriminant.
- Generalization of the Unique Factorization Theorem from rationals to number fields; Basic definitions:
- Number fields
- Algebraic integers in a number field
- Integral bases
- Discriminant
- Norms of ideals
- Finiteness of ideals of bounded norm
- Class number
- Finiteness of class number
- Dedekind's Unique Factorization Theorem for ideals of a number field
- Geometry of numbers:
- Minkowski's lemma on lattice points
- Logarithmic spaces
- Dirichlet's Unit Theorem for the units of the ring of integers of a number field
- Theorems of Minkowski and of Hermite on discriminants of number fields
- Ramification Theory:
- Relative extensions
- Relative discriminant and Dedekind's criterion for ramification in terms of discriminant
- Higher ramification groups
- Hilbert theory of ramification
- Splitting of Primes:
- Frobenius map
- Artin symbol
- Artin map
- Splitting of primes in Abelian extensions in terms of Artin map
- Rudimentary class field theory
- Examples - quadratic and cyclotomic extensions
- Arithmetic of cyclotomic fields, and the Kronecker-Weber Theorem
- Dedekind zeta function
- The class number formula - the formula which relates the residue of the Dedekind zeta function of a number field at s=1 to its class number, regulator and discriminant
In addition, time permitting, the instructor may want to add to the list topics of special to him/her.
Textbooks
Possible textbooks for this course include (but are not limited to):
