Math 475, Spring 2013, Tonghai Yang

Lecture Section 001,

Sewell Social Sciences, Rm 5231

12:05-12:55pm, MWF



Text: Introduction to Combinatorics, 5th ed. by R.A. Brualdi
 

We will try to use Piazza for communcation this semester as a first time experiment for me. Please bear with me if it does not work out well. Here is the webpage

https://piazza.com/wisc/spring2017/math475spring17/home

Office Hours: Tuesday 1-2pm at my office Van Vleck 705, Friday 5-6 at Piazza

TA (Spencer Chang) Office Hour: Monday 9-10pm, Wednesday 11am-12 noon, Van Vleck 101-Desk 20/21.

Contact Information:  thyang@math.wisc.edu,  608-263-4219
 

Grading: The course grades will be computed as follows. Homework  count 20%. There are two in class midterm exams, each counting 25%.The final exam counts 30%.   The grades are given according to the total scores, and the average grade in the class is expected to be about C or higher. Improvement towards the end of the semester may  not be  reflected in the final grade. Don't try to do everything at last minute, which usually does NOT work for mathematics.  Work hard from day one,  you will be happier toward  the end of the semester, so will I.
 
Homework:   Homework  is extremely important part of the course, both for understanding the material  and your grade. No make-up for homework. We will drop one or two lowest homework score(s). More you do in time, the better. I have suggested homework problems for you to try, which is minimal. You should try to do more.  Do as many as as you can and think about the formulae and theorems you used, you will get a better understanding. some exam problems will come from the suggested homework problems.  The problems with *  are the ones to turn in. You should read the book before and after the class to understand the material!!!

 Exams: We will have two 50 minutes in class midterm exams and a final exam.   Notes/textbooks will NOT be allowed during the exams. Calculators will not be allowed, and will not be needed.  I have the right to check your ID randomly during exams. So please bring in your ID with you.

Missed exam policy: Midterm exam  makes-up  are ONLY allowed in extreme cases,  which  has to be approved by me in advance.  It will be done at one day or two days immediately before or after the exam.  When there is a conflict with another exam of yours, the higher number course has priority (e.g., Math 475 will have priority  over Physics 460 ).

                   
          

There are some  minor mistakes in the book, see 

http://www.math.wisc.edu/~brualdi/5thed-corrs.pdf




Rough Schedule (subject to change without notice) and Suggested homework problems

Week
Sections
Suggested  HW problems
Jan. 16-20
2.1, 2.2, 2.3
Page 60: 1, 3, 6*, 8*, 9, 11, 12*, 16*, 21,26, 28*
Jan. 23-27(Chinese New Year Eve)
2.3-2.5
Page 65: 32, 35, 38*, 39*, 40, 42*, 44, 46*, 50*, 51,
Jan. 30-Feb. 3
2.6, 3.1, 3.2

Page 67: 57, 60*,

Page 82: 1, 4*, 6, 8*, 9,11*, 12,14*, 15, 18

Feb. 6-10
3.3, 5.1, 5.2

Page 84:, 20, 27*,

Page 154: 1, 5, 6*, 8, 9, 11*, 12,15, 16*, 19*,

Feb. 13-17
5.3-5,5
Page 156: 21, 22*, 25*, 29, 35*, 40* 43, 44*(the  RHS should be (-3)^n), 47
Feb.20-24
Review, Exam 1
Eaxm 1 on Wednesday in class, 6.1

Feb. 27-Mar. 3
6.1, 6.2, 6.3
Page 198: 1, 3, 4*, 6*, 7, 9*, 10, 11*, 12, 14*.
Mar.  6-10
6.3, 6.4, 6.5(may skip) 7.1
Page 199: 15, 16*, 19, 21*, 24*, 27, 29*, 30*,31, 33,
Mar. 13-17
7.1, 7.4 Page 257: 1, 2, 3, 6, 8*, 11*, 33*, 34*, 36, 37*,
Mar.  20-24
Spring Break  Sping Break---Have a wonderful break without being drunk!
Mar. 27-31.
7.4, 7.2  Page 262: 39*, 40*, 42*, 44*, 46*, 48,
Apr.  3-7
7.2, 7.3, 7.5(maybe)
Page 260:12, 14*, 18*, 19, 15, 16, 17, 20*, 23, 24, 25*, 27*, 29, 31,
Apr. 10-14
Review, Exam 2 Exam 2 on Wednesday in class. 7.5
Apr. 17-21
7.5, 7.6(maybe) 8.1, 8.2

Page 263: 47*, 48, 50*, 51*, 52, 53*

.Page 315: 1, 2*, 4,

Apr.24-28
8.2, 8.3
Page 316: 6*, 7, 8, 10*, 11, 12*, 13*, 16, 18, 19*, 21, 25, 26, 27, 28, 30, 32, 35, 36
May  1-6 8.3, 8.4(maybe) , review  
May 9
Final Exam
Final Exam:  Tuesday May 9, 7:25-9:25pm,