Math 521 Homework 4 Due: September 24, 2009
Do the following problems from Artin, plus any extra problems described below. The
homework is due to either my oce (3114 SAS) or my mailbox (in 3151 SAS) by 5:00 PM
on the indicated date. Students are encourage
Math 521 Homework 6 Due: October 15, 2009
IN CLASS (10:15 AM)
Do the following problems from Artin, plus any extra problems described below. Students are encouraged to attempt all problems by themselves before working on the problems in groups. Please ind
Math 521 Homework 5 Due: October 6, 2009
Do the following problems from Artin, plus any extra problems described below. The
homework is due to either my oce (3114 SAS) or my mailbox (in 3151 SAS) by 5:00 PM
on the indicated date. Students are encouraged t
Math 521 Homework 7 Due: October 22, 2009
Do the following problems from Artin, plus any extra problems described below. The
homework is due to either my oce (3114 SAS) or my mailbox (in 3151 SAS) by 5:00 PM
on the indicated date. Students are encouraged
Math 521 Homework 9 Due: November 5, 2009
Do the following problems from Artin, plus any extra problems described below. The
homework is due to either my oce (3114 SAS) or my mailbox (in 3151 SAS) by 5:00 PM
on the indicated date. Students are encouraged
Math 521 Homework 11 Due: Tuesday,
November 24, 2009
Do the following problems from Artin, plus any additional problems described below.
The homework is due to either my oce (3114 SAS) or my mailbox (in 3151 SAS) by
5:00 PM on the indicated date. Students
Math 521 Homework 8 Due: October 29, 2009
Do the following problems from Artin, plus any extra problems described below. The
homework is due to either my oce (3114 SAS) or my mailbox (in 3151 SAS) by 5:00 PM
on the indicated date. Students are encouraged
Math 521 Homework 10 Due: Tuesday,
November 17, 2009
Do the following problems from Artin, plus any additional problems described below.
The homework is due to either my oce (3114 SAS) or my mailbox (in 3151 SAS) by
5:00 PM on the indicated date. Students
Math 521 Homework 2 Due: Thursday, Sept. 10, 2009
Do the following problems from Artin, plus any extra problems described below. The
homework is due to either my oce (3114 SAS) or my mailbox (in 3151 SAS) by 5:00 PM
on the indicated date. Students are enc
Math 521 Homework 12 Due: Not Due
These are extra homework problems covering material from the last 4 lectures of class.
The problems need not be turned in, though I will be happy to look over your solutions
before the exam, if you wish.
Unless otherwise
Math 521 Worksheet 1
Problem 1. Let Z be the group of integers under binary operation +. For any b N let
bZ := cfw_ , 2b, b, 0, b, 2b, be the set of all multiples of b. The goal of this problem is to
prove the following.
Proposition. If H is a subgroup o