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- 16:59, 3 December 2008 (diff | hist) . . (+400) . . User:Nmisner MA453Fall2008walther (current)
- 17:17, 23 November 2008 (diff | hist) . . (+421) . . User:Nmisner MA453Fall2008walther
- 19:20, 5 November 2008 (diff | hist) . . (+110) . . Question 13 MA453Fall2008walther
- 08:39, 2 November 2008 (diff | hist) . . (+103) . . Possible discussion group on wednesdays... MA453Fall2008walther
- 05:00, 22 October 2008 (diff | hist) . . (+301) . . Chapter 12, Problem 2 MA453Fall2008walther
- 04:48, 22 October 2008 (diff | hist) . . (+244) . . N Chapter 13, Problem 6 MA453Fall2008walther (New page: Chapter 13, Problem 6. Find a nonzero element in a ring that is neither a zero-divisor nor a unit. Answer: In the ring Z, 2 is neither a zero-divisor (because Z is an integral domain, and...)
- 04:47, 22 October 2008 (diff | hist) . . (+271) . . N Chapter 13, Problem 5 MA453Fall2008walther (New page: Chapter 13, Problem 5. Show that every nonzero element of Zn is a unit or a zero-divisor. Answer: Suppose that a is in Zn. If gcd(a, n) = 1, then we know that a is a unit. Suppose that ...)
- 12:15, 19 October 2008 (diff | hist) . . (+373) . . User:Nmisner MA453Fall2008walther
- 07:36, 7 October 2008 (diff | hist) . . (+125) . . N Chapter 8, Problem 8 MA453Fall2008walther (New page: Every element of Z_3 (+) Z_9 is order 1,3,9. Z_27 has an element of order 27. Therefore they cannot be isomorphic. --Neely) (current)
- 06:42, 2 October 2008 (diff | hist) . . (+215) . . Chapter 10, Problem 32 MA453Fall2008walther
- 07:33, 24 September 2008 (diff | hist) . . (+117) . . Supplementary Question 1 MA453Fall2008walther
- 12:20, 21 September 2008 (diff | hist) . . (+524) . . N User:Nmisner MA453Fall2008walther (New page: I am really confused on the whole left and right cosets idea. When we did the following example G = 6 mod 6Z H = {0,2,4} Question 1: Did we use 0-5 because they were the elements of 6 ...)
- 11:51, 14 September 2008 (diff | hist) . . (+344) . . Mod Arithmetic MA453Fall2008walther
- 11:46, 14 September 2008 (diff | hist) . . (+243) . . Euler phi-function MA453Fall2008walther (→Euler \varphi-function)
- 15:33, 31 August 2008 (diff | hist) . . (+488) . . N Neely's Favorite Theorem MA453Fall2008walther (New page: Mine is the Pythagorean Theorem because of its history and use in today's world. <math>a^2+b^2=c^2</math> In The Thirteen Books of Euclid's Elements, the entire book is pull of proofs th...) (current)
- 15:28, 31 August 2008 (diff | hist) . . (+87) . . Week1 MA453Fall2008walther
