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GRAPH THEORY
(MATH 3116-001, Fall 2003)

Instructor: Gábor Hetyei
Office: Fretwell 335F, Phone: 867-2543, E-mail: ghetyei@uncc.edu
Office hours: MWF 10:30-11:30 am or by appointment.
Text: Graph Theory by Reinhardt Diestel, second Ed., Springer-Verlag, NY. The free non-printable electronic edition of the book is downloadable from
http://www.math.uni-hamburg.de/home/diestel/books/graph.theory/download.html
Prerequisite: MATH 2164 or consent of the department.
Topics:
Basics: Graphs. Degrees. Paths and cycles. Connectivity. Trees and forests. Bipartite graphs. Contraction and minors. Euler tours. Adjacency and incidence matrix. (Chapter 1)
Matching: Matching in bipartite graphs. (Chapter 2, Section 1)
Connectivity: 2-connected graphs. Menger's theorem. (Chapter 3/Sections 1 and 3)
Planar graphs: Jordan Curve Theorem for Polygons. Euler's formula. Kuratowski's theorem (Chapter 4, parts of Sections 1, 2, and 4.)
Colouring: Four Color Theorem (w/o proof). Königs theorem on edge-coloring bipartite graphs. (Chapter 5, parts of Sections 1 and 3)
Flows: Circulations. Flows in networks (Chapter 6, sections 1 and 2).
Test Dates:
Test 1 Monday September 29 2003, 02:00-02:50 pm
Test 2 Wednesday November 5 2003, 02:00-02:50 pm
Final Exam Monday December 15 2003, 3:30-6:30pm
(Double-check in the UNCC Exam schedule !)
The final exam will be cumulative, consisting of two parts of equal weight. The first part will be mandatory, covering only material taught after Test 2. The second half will contain questions reviewing the material taught before Test 2. This part will be optional, if left unanswered, I will substitute the average of your test scores.
Homework: Homework will be assigned nearly every day, and will be usually collected on Monday. I will make an effort to regularly post the homework on the webpage
http://www.math.uncc.edu/~ghetyei/courses/3116/hw.html
In case of discrepancy, what I said in class is "official". A random selection of the assigned exercises will be graded. Some homework exercises will be discussed in next class and not graded. Severly past due assignments will be counted at the rate of 90% of their value. No late assignment will be accepted after December 5.
Evaluation: Grades will be based on: 23% for the homework, 22% for each of the tests, and 33% for the final (22% for the mandatory part, 11% for the optional part).
Class meeting: MWF 02:00-02:50 pm in Denny 205.
Homepage: http://www.math.uncc.edu/~ghetyei/courses/3116/index.html