MATH:4060: Discrete Mathematical Models

MATH:4060:0001 Discrete Mathematical Models

Spring 2019 11:30A - 12:20P MWF 205 MLH

Instructor:  Dr. Isabel K. Darcy,    Department of Mathematics, AMCS, and Informatics,    University of Iowa

Office: 25J MLH               Phone: 319-335-0770         Email: isabel-darcy AT uiowa.edu           
Office hours: MWF 10:45 - 11:15am, W 12:30 - 1:30pm, and by appointment.

Text: Graph Theory and Complex Networks by Maarten van Steen
Recommended Texts:
         Reinhard Diestel, Graph Theory, Springer GTM 173
         Graph Theory with Applications J.A. Bondy and U.S.R. Murty

Syllabus

TENTATIVE CLASS SCHEDULE-ALL DATES SUBJECT TO CHANGE (click on date/section for pdf file of corresponding class material):
 

Monday Wednesday FridayHW/Announcements
Week 1 1/14:   Intro , Proofs, notes 1/16:  2.1 1/18:   2.1 HW 1 (due Friday 1/18): Worksheet
Week 2 MLK day 1/23: Thm 2.2, notes 1/25:  Thm 2.2, notes , 2.4
quiz 1 over ch 1 and 2 (see Exercises)
HW 2: 4, 10 - 20,      Answers
Week 3 1/28:  Slides (pdf), (ppt) 1/30:  2/1:  Slides (pdf), (ppt)
quiz 2, Answers
Practice problems for Friday's quiz
Week 4 2/4:  2/6:  connected(pdf), notes
HW 3 and 4 due
2/8:  planar graphs(pptx), (pdf), Vertex cut, notes,
HW 5 due
HW 3 and 4 due Wednesday 2/6

HW 4: 7, 8, 21, 22, 23

HW 3: Create slide(s) for your 1 minute presentation on a graph theory application. Make sure your slide(s) include
(1) Define the problem
(2) What do the vertices represent
(3) What do the edges represent
(4) What can graph theory say about your real-life problem? Can you formally state the graph theory problem(s)?

Use large font (best minimum = 24 point, 18 OK) Figures are helpful. INCLUDE YOUR NAME and affiliation.

HW 5 (due Friday). Does thm 2.4 hold for all graphs or should the definition of κ(G) be modified for a special case. How does this special case affect the proof of κ(G) ≤ λ(G)? I.e., can you find a case for which the proof of κ(G) ≤ λ(G) needs modification? Check the assumptions in the proof (this should help you find the special case). Can you prove that κ(G) ≤ λ(G)? Explore.

Week 5 2/11:  notes 2/13:  Mini exam 1: 12%, (Answers),
coloring (pdf)
2/15: 
Week 6 2/18:  Induction, notes 2/20:  HW 6 and HW 7 due 2/22:  HW 6 (due Wed 2/20): Final draft of slide(s) for your 1 minute presentation on a graph theory application.
HW 7 (due Wed 2/20): Q30, Q88
Week 7 2/25:  mini-project info 2/27: 
Quiz 3 (20 pts),
HW 8 due
3/1: Mini-presentations?? HW 8 (due Wed 2/27) Q22, Q55, Q58, Q64, Q90
Week 8 3/4:  directed graphs 3/6:  induction, exam info 3/8:  Midterm: 22%, answers HW 9 (due Monday for comments, Friday for points or Monday 3/11): 27, 35, 36, 38, 41, 48, 51, 54, 69, 71, 72, 76, 77, 87, 89, 91
Week 9 3/11:  3/13:  Dijkstra example, notes 3/15:  HW 10 (due Wednesday 3/13): Q65
*****Spring Break****
Week 10 3/25:  notes 3/27:  notes 3/29:  Eulerization, notes Abstract due via ICON on Thursday.
Week 11 4/1:  4/3: Quiz 4 TSP, notes 4/5:  notes HW 11 (due Wednesday 4/3) 93, 97, 98, 100, 101, 104
HW 12 (due Saturday 4/6) Create an exam question similar to problem 2 on the midterm and answer it. See ICON for more info.
Week 12 4/8:  TSP 4/10:  review 4/12: N.A. Mini exam 2: 12% answers HW 13 (due Monday for comments, Monday 4/15 for points): 67, 94, 106, 108, 110
Hints: for 94 use induction starting at k = 2. Note a 1-cube in not Hamiltonian (so base case in solution is wrong).
Use 108 to solve 110.
Week 13 4/15:  Meet in LIB 1140 4/17:  notes 4/19:  Lab (due Monday 4/15): In class assignment.
HW 14 (due Wednesday 4/17): 116, 119, 121, 122 (Note these problems review old material related to trees).
Week 14 4/22:  4/24:  notes, Quiz 5 4/26:  notes Mini-project Poster (due Monday April 22th)
HW 15 (due Wednesday 4/24):
Week 15 4/29:  5/1:  notes 5/3:  Mini-Project Write-up (due Friday May 3th): 5 - 10 pages single spaced (including figures and references)
Recommended HW:
Final's Week 10:00AM - 12:00PM 05/08/2019 Wed 205 MLH