Math 3110 (Section 101) Homepage
News & Announcements
12/07 The final exam and answer key are posted here.
Well, that's quick work for you...it only took
me 7 months to get around to finishing that :)
05/05 Final grades have been posted on AsULearn.
Please feel free to email me if you have
any questions or if you want to look over
your exam. I will post the exam and an
answer key in the upcoming weeks.
04/30 Forgot to post...REVIEW SESSION TODAY!!!
We will have a review session at 3pm
today in our regular room WA 106.
04/23 I have posted test #3 and its answer key here.
Ring Handouts (I will pass out copies tomorrow):
Ring Definitions
Ring Examples
04/22 Our very own Kelly Sullivan will be performing next
Tuesday. Here's the info.
Announcement: Tuesday, April 28 at 12:20 PM on Sanford Mall there will be a
performance incorporating dance and Mathematics. Hopefully I will be able to
prove (display) D4 through movement. Should be pretty cool and I hope
everyone will be able to make it!
Thanks!!
-Kelly Sullivan-
I will give anyone who attends a few extra credit
points...make sure you let me know you're there
(and you want the points).
04/20 Extra Credit Problem set (aka Problem set 9):
5.1 #24 and #31 (Prove the subrings ARE subrings),
5.2: #14 and #15b,d (Use the Euclidean Algorithm),
6.1: #7, #13b,d,f, and #23,
6.2: #17 (Hint: Consider 6.1 #7 and #23) and #18
Due: Wednesday, April 29th.
04/16 It's last minute but here it is...
Test #3 Review Suggestions
Most of all...do you homework!
In case you've never watched it...
A Finite Simple Group of Order 2
by the Klein Four Group.
(Problem 4.1 #1 has a Cayley table
for the Klein four group.)
04/10 Problem set 8: 4.2 #2,
4.4 #8 and #41,
4.5 #16 and #20.
Due: Friday, April 17th.
Test #3 Friday, April 16th.
Covers 3.4, 3.5, 4.2, 4.4, and 4.5
that is...homomorphisms, kernels, isomorphisms,
Cayley's theorem, cosets, Lagrange's theorem,
normal subgroups, quotient groups.
A Quotient of A_4
(The handout from today's class.)
02/20 I have posted test #2 and its answer key here.
Problem set 7: 3.4 #13,
3.5 #1, #4, #10, and #13.
Due: Wednesday, April 8th.
03/30 Well, I didn't pick out a new homework assignment,
but I did get the test grades posted on AsULearn.
I curved the test 15pts. Overall, things weren't
great, but maybe that's because the test was a
bit too long. If you want to come pick up your
test, feel free to stop by my office tomorrow.
Otherwise, I'll pass them back in class on
Wednesday. The answer key should be up sometime
tomorrow afternoon (along with a new homework
assignment).
03/24 Test #2 Review Suggestions
03/19 Test #2 Wednesday.
Answer a million questions in my office? Succeed
Review sheet posted today? Fail...maybe tomorrow morning.
03/18 We will have Test #2 on Wednesday, March 25th.
Problem set 6: 3.1 #33 (You may show this is a subgroup of something else),
3.2 #10 and #17,
4.1 #2b,f, #4b,f, #6b,f, #8b,f, #9b,f, and #19.
Due: Wednesday, March 25th.
02/27 Problem set 5: 3.1 #4, #14, #39, #46, #50*
Due: Wednesday, March 4th.
* You may prove associativity of the product using Venn
diagrams if you wish. In addition, I want you to show
that this group is Abelian.
By the way, the product defined in problem #50
is called the "Symmetric Difference" of two sets.
Symmetric Difference properties
02/24 Problem set 5: 3.1 #4, #14, #39, #46, ***#50*** see 02/27 note
Due: Wednesday, March 4th.
Homework #3 and #4 scores have been posted
on AsULearn.
02/20 Test #1 scores have been posted on AsULearn.
Overall the tests looked good.
Average = 80 and Median = 85
I have posted the test and its answer key here.
Also, here is today's handout:
Examples of Groups
02/16 Problem set 4: 2.5 #8, 2.6 #3d, #4d and #5d
Due: Monday, February 23rd.
Test #1 -- Wednesday!
02/09 Problem set 3: 2.2 #5, 2.3 #16 and #27, 2.4 #3b,f,j and #9
Due: Monday, February 16th.
Test #1: Wednesday, February 18th
01/28 I will not hold any office hours this Friday.
Prof. Vicky Klima will be teaching for me.
Prof. Hirst's TeX Page
01/27 Answer Key for Homework #1.
How can I make nice math documents too? Use "LaTeX".
Step 1: Download MikTex -- standard installation is fine.
Step 2: Download a Latex editor like LED
Step 3: Modify someone else's LaTeX code -- like mine.
Step 4: Read a LaTeX Tutorial online when you get stuck.
(There are a million to choose from.)
LaTeX is widely used -- most mathematicians and many computer
scientists as well as physicists and other scientists use
LaTeX. Going to grad. school in math? Learn LaTeX...you'll need it.
Also, MikTex and LED are freeware. So you don't need to sink
a bunch of money into some buggy software which gives you
substandard math output (cough - cough - Microsoft Word).
01/26 Problem set 2: 1.3 #7, 1.4 #2b,d,f and #4, 1.5 #8, 1.6 #20
Due: Monday, February 2nd.
01/15 Problem set 1: Appendix #22, 1.1 #14 and #30, 1.2 #4a,c,d,i and #22
Due: Friday, January 23rd.
Note: For problem 1.2 #4 -- If the map in question is one-to-one,
I want you to prove that it's one-to-one. Otherwise,
you should provide a counterexample showing it isn't
one-to-one. Likewise, if the map in question is onto,
prove it's onto. Otherwise, show it isn't onto by
giving a counterexample.
01/12 I've picked out suggested homework for the Appendix
and Chapter 1. I plan to cover section 1.1 and part
of 1.2 on Wednesday. I will assign some homework to
be turned in...soon.
Also, AsULearn is up and running.
01/09 The syllabus has been posted.
I will update the tentative schedule and suggested homework
pages next week.
*) Syllabus
*) Schedule
*) Homework
12/15 Course Data
MAT 3110 Section 101 Credits 3.000
Title INTROD TO MOD ALG
Meeting Times MWF 10:00am-10:50am
Room WA 106
Syllabus, suggested homework and schedule pages
will be posted ?early January?
Any questions about this class?
Send me an email at cookwj@appstate.edu