Math 38: Graph Theory

Spring 2015


  • The latest homework will always appear on top.

  • In this class you will be writing lots of proofs, here is a pdf document with tips on writing proofs.

  • If you are interested in learning to typeset mathematics here is a list of resources compiled by Prof. Weber on LaTex

    Homework assignments

  • Late Homework will not be accepted.
  • Write the names of the people with whom you worked on the homework.
  • Please make sure that what you turned in for homework is your own understanding of how to do the problems.

    Graded assignments: These problems will graded in detail.

    Homework due day: Homework will be assigned daily and will be collected once a week on Wednesdays.


    Week 10
    Monday, June 1:

    Week 9
    Friday, May 29:
    Wednesday, May 27:
    Week 8
    Friday, May 22:
    Wednesday, May 20:
    • Read: Section 6.1
    • Planar Graphs
    • Sect. 6.1 # 3, 5, 15, 17, 18
      Sect. 6.2 # 2(a,b), 5
      Sect. 6.3 # 4 (only for K_{4,4} and Petersen), 5, 18
    Monday, May 18:
    Week 7
    Friday, May 15:
    Wednesday, May 13:
    • Read: Section 5.1
    • Vertex Coloring
    • Sect. 4.3 # 2
      Sect. 5.1 # 12, 14, 20, 33
      Sect. 5.2 # 1
      Sect. 5.3 # 3, 4(a), 11, 18
    Monday, May 11:

    Week 6
    Friday, May 8:
    Wednesday, May 6:
    • Read: Section 4.1
    • Connectivity
    • Sect. 4.1 # 2, 3, 5, 8, 10, 11, 15
      Sect. 4.2 # 4, 11, 12
    Monday, May 4:

    Week 5
    Friday, May 1:
    Wednesday, April 29:
    • Read: Section 3.1
    • Matchings
    • Sect. 3.1 # 5,8,9, 12, 24, 28
      Sect. 3.3 # 2, 3, 6
    Monday, April 27:

    Week 4
    Friday, April 24:
    Thursday, April 23:
    • Midterm 1: 4-6 PM in KH 004
    Wednesday, April 22:
    Monday, April 20:

    Week 3
    Friday, April 17:
    • Read: Section 2.1
    • Trees
    Wednesday, April 15:
    • Read: Sections 1.3 and 1.4
    • Digraphs
    • Homework: (due Wednesday, April 22)
      Sect. 1.3 # 8 (b,c), 14, 17, 32
      Sect. 1.4 # 9, 10, 15
      Sect. 2.1 # 15, 23, 26
    Monday, April 13:

    Week 2
    Wednesday, April 8:
    Tuesday, April 7:
    Monday, April 6:

    Week 1
    Friday, April 3:
    • Read: Section 1.1
    • Basic Definitions
    • Homework: (due Wednesday, April 8)
      Sect. 1.1 # 10, 13, 16, 25, 29, 30
    Wednesday, April 1:
    • Read: Section 1.1
    • Basic Definitions
    • Homework: (due Wednesday, April 8)
      Sect. 1.1 # 10, 13, 16, 25, 29, 30
    Monday, March 30:


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