Chris Christensen


Professor of Mathematics
Department of Mathematics
Northern Kentucky University
Highland Heights
, KY 41099

859-572-6672
FAX: 859-572-6097

E-mail  christensen@nku.edu
 

MAT 415 – 001

This class meets MWF 9:00 – 9:50 in ST 245.

Spring 2009

Here is a copy of the syllabus for MAT 415 – 001.

Here is a copy of the Departmental syllabus that applies to all MAT and STA courses.

 

Monday, January 12

            Section 7.1 Introduction to rings and field.

Wednesday, January 14

            Units and zero divisors.

Friday, January 16

            Quadratic integer rings – especially the Gaussian integers.

Monday, January 19

            Holiday

Wednesday, January 21

            Polynomial rings and matrix rings.

Friday, January 23

            Ring homorphisms and (two-sided) ideals

Monday, January 26

            Ideals and quotient rings

Wednesday, January 28

            Classes cancelled because of weather.

Friday, January 30

            Ideal properties

Monday, February 2

            Maximal ideals

Wednesday, February 4

            Euclidean algorithm

Friday, February 6

            Ideal M is maximal if and only if R/M is a field.

Monday, February 9

            Ideal P is prime if and only if R/P is an integral domain.

Wednesday, February 11

            Construction of a quotient field

Friday, February 13

            Euclidean domains and principal ideal domains

Monday, February 16

            Prime ideals are maximal ideals in a PID

Wednesday, February 18

            Primes and irreducible

Friday, February 20

            UFDs

            Test one

Monday, February 23

            Gauss’ lemma

Wednesday, February 25

            Irreducibility tests

Friday, February 27

            Mod p test

            Polynomials to factor

Monday, March 2

            Eisenstein’s criterion

Wednesday, March 4 and Friday, March 6

            Polynomials to factor

Spring break

Monday, March 16

            Introduction to fields: characteristic and extension

Wednesday, March 18

            Kronecker construction

            Test two

Friday, March 20

            Finite fields

Monday, March 23

            Kronecker construction

Wednesday, March 25

            Simple extension

Friday, March 27

            No Class

Monday, March 30

            Simple algebraic extension

Wednesday, April 1

            Simple plus finite is algebraic.  Finite implies algebraic.

Friday, April 3

            [L:k] = [L:K][K:k]

Monday, April 6

            Finitely generated by algebraic elements implies finite.

Wednesday, April 8

            The rational numbers … and more are constructible.

Friday, April 10

            The Greek construction problems are impossible

            Test three

Monday, April 13

            Splitting field

Wednesday, April 15

            Hints for test three

            Algebraic closure

Friday, April 17

            Separable polynomial

Monday, April 20

            Roots of unity

Wednesday, April 22

            Primitive nth roots of unity and cyclotomic polynomials

Friday, April 24

            Cyclotomic polynomials

            Exam Do 7 problems.  Due no later than noon on Friday, May 8.

Monday, April 27

            Cyclotomic polynomials are irreducible

Wednesday, April 29

            Introduction to Galois theory

Friday, May 1

            Construction of regular n-gons