Math 3110 (Section 101) Homepage
News & Announcements
04/18 Final exam and answer key posted here.
(How about that for prompt service? Hmmm....)
12/07 Test #3 and its answer key are posted here.
I have posted last spring's final exam with answer key too.
Review session: Tuesday, December 8th starting at 10am in our
regular classroom (Walker 105). Please feel free to come late or leave
early.
11/27 Problem set 7: Section 4.5 #16 and #20, Section 5.1 #2 parts b, g, and h,
Section 5.1 #24, Section 5.2 #6, Section 6.1 #7,
Section 6.1 #13 parts b, d, and f, Section 6.1 #23,
Section 6.2 #17 and #18
Make sure you justify your answers. (For example, if the problem asks
"Is R a commutative ring?" and the answer is "Yes", you must prove
that R is a ring and that its multiplication is commutative.)
You do not have to turn in all of these problems.
You may choose 4 problems to turn in as problem set #7 and if you do
any additional problems, I will count them as extra credit homework.
Due: Friday, December 4th.
11/18 The Test covers...
3.4, 3.5 (homomorphisms and isomorphisms)
4.1 (review permutations)
4.2 (Cayley's theorem)
4.3 (read -- helps explain Dihedral groups)
4.4 (cosets, Lagrange's Theorem, normal subgroups)
4.5 (quotient groups, kernels, 1st isomorphism theorem)
Handouts from today...
Ring Definitions
Ring Examples
Test #2 answer key posted here.
11/11 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.)
Test #3 Friday, November 20th.
A Quotient of A_4
(The handout from today's class.)
11/09 Problem Set #6 due Monday, November 16th.
10/30 Test #2 is posted here.
I want everyone to rework the test -- I will return them on
Monday. Corrected tests will earn back points missed on the
original. How much you ask? I'll think about it and get back
to you on Monday.
Reworked Test #2's are due next Friday.
10/14 Test #1 and answer key posted here.
Problem set 5: Section 3.2 #14 parts a and b, Section 3.2 #22,
Section 4.1 #2 parts b, d, f, and h. Also, write
these permutations as products of transpositions and
determine whether they are even or odd (as in #8 and #4).
Due: Monday, October 26th.
10/09 Group work worksheet.
10/07 The tests have been graded! Grades are posted on AsULearn.
Problem set 4: Section 2.5 #26, Section 2.6 #5 parts b, d, and f
Section 2.6 #18, and Section 3.1 #47
Due: Wednesday, October 14th.
10/01 Examples of Groups handout.
09/28 Test #1 is Wednesday. To help study for the test I suggest...
Look over suggested homework...at the very least read all of the problems.
Look over your homework sets. Fix whatever went wrong.
After studying, try taking Spring 2009's test 1 which can be found here.
[Note: Problems 1 - 6a are relevant. Skip 6b, 6c, and problem 7. Also,
you should be able to complete these problems in about 45 mins.]
09/22 Problem set 3: Section 2.2 #2, Section 2.3 #26, and Section 2.4 #9
Due: Monday, September 28th.
Test #1 will be held Wednesday, September 30th.
09/16 Homework grades have been posted on AsULearn.
For Set 2 problem 1.4 #13, you can just prove the statment in one direction
(either the "if" or the "only if" part). If do both directions, I will give
you some extra credit.
Teaching fellows (who are excused from Friday's class) my turn in their
homework on Monday.
09/11 Problem set 2: Section 1.2 #23 parts a and d, Section 1.3 #10, and Section 1.4 #13
For the last problem: If you quote the result of another homework problem, you
must turn in that problem as well.
Due: Friday, September 18th.
09/01 Problem set 1: Appendix #28, Section 1.1 #18, and Section 1.2 #9 parts b and d
If a function is 1-1 or onto, prove it. If not, disprove it.
Due: Wednesday, September 9th.
08/25 Syllabus posted.
Suggested homework posted.
Tentative schedule posted.
05/08 Syllabus, suggested homework and schedule pages
to be posted ?late August?
Any questions about this class?
Send me an email at cookwj@appstate.edu