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- 18:51, 2 December 2008 (diff | hist) . . (+260) . . N Chapter 21, Problem 24 MA453Fall2008walther (New page: Factoring I found that there are two fields one is in the form F(a) {a + bi| a,b contained in Z_3} the other is (x - B)(x^3+x^2B-x+xB^2-B+B^3) which I got from long division. Did anyone ...)
- 18:49, 2 December 2008 (diff | hist) . . (+224) . . N Chapter 21, Problem 16 MA453Fall2008walther (New page: Following the same procedures as with a square root does not get me anywhere. Does anyone have any suggetions? on how to find the minimal polynomial for a cube root?! --~~~~)
- 18:32, 18 November 2008 (diff | hist) . . (+372) . . N Chapter 20, Problem 5 MA453Fall2008walther (New page: Question states: Find the splitting field of x^4 + x^2 + 1 = (x^2 + x + 1)(x^2 - x + 1 ) over Q Hint: Use the quadratic formula to find the roots (r1,r2,r3,r4) of the quadratics. The roo...)
- 04:59, 13 November 2008 (diff | hist) . . (+258) . . Chapter 17, Problem 10 MA453Fall2008walther (current)
- 04:57, 13 November 2008 (diff | hist) . . (+500) . . 17 Problem 21 MA453Fall2008walther (current)
- 14:44, 5 November 2008 (diff | hist) . . (+691) . . N Question 16 MA453Fall2008walther (New page: Question 16: Show that Corollary 3 of Theorem 16.2 is false for any commutative ring that has a zero divisor. Corollary 3 states that a polynomial of degree n over a field has a most n ze...)
- 16:48, 29 October 2008 (diff | hist) . . (-16) . . Chapter 14, Problem 6 MA453Fall2008walther
- 16:48, 29 October 2008 (diff | hist) . . (+2) . . Chapter 14, Problem 6 MA453Fall2008walther
- 16:48, 29 October 2008 (diff | hist) . . (+724) . . Chapter 14, Problem 6 MA453Fall2008walther
- 14:22, 22 October 2008 (diff | hist) . . (+1,142) . . Chapter 13, Problem 28 MA453Fall2008walther
- 17:53, 7 October 2008 (diff | hist) . . (+413) . . N Chapter 8, Problem 52 MA453Fall2008walther (New page: '''Without doing any calculations in Aut(Z_20), determine how many elements of Aut(Z_20) have order 4. How many have order 2?''' The only way I can think to do this problem is to apply T...) (current)
- 14:58, 1 October 2008 (diff | hist) . . (+410) . . N Supplementary Question 2 MA453Fall2008walther (New page: Prove that A_3 inside S_3 is normal. To prove this use the definition that if a group is normal then as a collection left cosets equal right cosets. I used S_3 to equal a symmetric trian...)
- 05:24, 1 October 2008 (diff | hist) . . (+58) . . Chapter 10, Problem 32 MA453Fall2008walther
- 05:24, 1 October 2008 (diff | hist) . . (+238) . . N Chapter 10, Problem 32 MA453Fall2008walther (New page: We know that phi(7) = 7 and thus we can see that phi7 * 7) = phi(7) * phi(7) by the morphism law which is 49 -30 which equals 19. Same applies with phi(7^3) it equals 13. How do we get ...)
- 17:19, 29 September 2008 (diff | hist) . . (+2) . . N User talk:Akcooper MA453Fall2008walther (New page: hi) (current)
- 17:18, 29 September 2008 (diff | hist) . . (-12) . . Chapter 10, Problem 24 MA453Fall2008walther
- 17:17, 29 September 2008 (diff | hist) . . (0) . . Chapter 10, Problem 24 MA453Fall2008walther
- 17:17, 29 September 2008 (diff | hist) . . (+6) . . Chapter 10, Problem 24 MA453Fall2008walther
- 17:16, 29 September 2008 (diff | hist) . . (+87) . . N Chapter 10, Problem 24 MA453Fall2008walther (New page: Problem'''Problem: Suppose phi: Z_50 -> Z_15 is a group homomorphism with phi(7) = 6''')
- 14:14, 20 September 2008 (diff | hist) . . (+61) . . Chapter 4, Problem 61 MA453Fall2008walther
- 14:14, 20 September 2008 (diff | hist) . . (+32) . . Chapter 4, Problem 61 MA453Fall2008walther
- 14:12, 20 September 2008 (diff | hist) . . (+378) . . Chapter 4, Problem 61 MA453Fall2008walther
- 14:07, 20 September 2008 (diff | hist) . . (+130) . . Chapter 4, Problem 61 MA453Fall2008walther
- 14:04, 20 September 2008 (diff | hist) . . (+135) . . Chapter 4, Problem 61 MA453Fall2008walther
- 14:02, 20 September 2008 (diff | hist) . . (0) . . Chapter 4, Problem 61 MA453Fall2008walther
- 14:01, 20 September 2008 (diff | hist) . . (+137) . . Chapter 4, Problem 61 MA453Fall2008walther
- 17:07, 15 September 2008 (diff | hist) . . (+5) . . Chapter 3, Problem 9 MA453Fall2008walther
- 17:07, 15 September 2008 (diff | hist) . . (+11) . . Chapter 3, Problem 9 MA453Fall2008walther
- 17:07, 15 September 2008 (diff | hist) . . (+6) . . Chapter 3, Problem 9 MA453Fall2008walther
- 17:07, 15 September 2008 (diff | hist) . . (+93) . . Chapter 3, Problem 9 MA453Fall2008walther
- 17:05, 15 September 2008 (diff | hist) . . (+14) . . Chapter 3, Problem 9 MA453Fall2008walther
- 17:04, 15 September 2008 (diff | hist) . . (+302) . . N Chapter 3, Problem 9 MA453Fall2008walther (New page: The problem says show that U(20) does not equal <k> for any k in U(20). [Hence U(20) is not cyclic.] I was trying to understand Example 1 from the text book. where it discusses U(15). I a...)
- 15:22, 9 September 2008 (diff | hist) . . (+56) . . HW2 Ch5 19 MA453Fall2008walther
- 15:21, 9 September 2008 (diff | hist) . . (+236) . . HW2 Ch5 19 MA453Fall2008walther
- 15:18, 9 September 2008 (diff | hist) . . (+167) . . HW2 Ch5 19 MA453Fall2008walther
- 15:17, 9 September 2008 (diff | hist) . . (+66) . . HW2 Ch5 19 MA453Fall2008walther
- 15:15, 9 September 2008 (diff | hist) . . (+199) . . HW2 Ch5 19 MA453Fall2008walther
- 14:53, 9 September 2008 (diff | hist) . . (+63) . . HW2 Ch5 19 MA453Fall2008walther
- 14:26, 9 September 2008 (diff | hist) . . (+139) . . HW2 Ch5 19 MA453Fall2008walther
- 14:25, 9 September 2008 (diff | hist) . . (+1) . . HW2 Ch5 19 MA453Fall2008walther
- 14:25, 9 September 2008 (diff | hist) . . (-1) . . HW2 Ch5 19 MA453Fall2008walther
- 14:25, 9 September 2008 (diff | hist) . . (-11) . . HW2 Ch5 19 MA453Fall2008walther
- 14:24, 9 September 2008 (diff | hist) . . (+14) . . HW2 Ch5 19 MA453Fall2008walther
- 14:24, 9 September 2008 (diff | hist) . . (+104) . . HW2 Ch5 19 MA453Fall2008walther
- 14:17, 9 September 2008 (diff | hist) . . (+88) . . HW2 Ch5 19 MA453Fall2008walther
- 14:16, 9 September 2008 (diff | hist) . . (0) . . HW2 Ch5 19 MA453Fall2008walther
- 14:15, 9 September 2008 (diff | hist) . . (+1) . . HW2 Ch5 19 MA453Fall2008walther
- 14:14, 9 September 2008 (diff | hist) . . (+53) . . HW2 Ch5 19 MA453Fall2008walther
- 14:12, 9 September 2008 (diff | hist) . . (+182) . . N HW2 Ch5 19 MA453Fall2008walther (New page: Question: Show that if H is a subgroup of <math>S_n</math>, then either every member of H is an even permutation or exactly half of the members are even. Answer: Suppose H contains)
- 14:05, 9 September 2008 (diff | hist) . . (+80) . . HW2 Ch5 8 MA453Fall2008walther
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