Expressing as Product of Disjoint Cycles

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SUMMARY

The discussion focuses on expressing permutations as products of disjoint cycles, specifically for the permutations (1,2,3)(4,5)(1,6,7,8,9)(1,5) and (1,2)(1,2,3)(1,2). The correct solutions provided are (1,4,5,6,7,8,9,2,3) for part a and (1,3,2) for part b, confirming the application of permutations from right to left. The participants emphasize the importance of correctly interpreting the order of operations in permutation notation.

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  • Understanding of permutation notation and cycle representation
  • Familiarity with the concept of disjoint cycles in group theory
  • Knowledge of how to apply permutations from right to left
  • Basic skills in abstract algebra, particularly in the context of symmetric groups
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  • Study the properties of symmetric groups and their representations
  • Learn about the algorithm for finding disjoint cycle representations of permutations
  • Explore advanced topics in group theory, such as conjugacy classes
  • Practice problems involving permutations and their applications in combinatorics
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Mathematics students, particularly those studying abstract algebra, educators teaching group theory concepts, and anyone interested in combinatorial mathematics and permutation theory.

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Homework Statement



Express as the product of disjoint cycles:
a. (1,2,3)(4,5)(1,6,7,8,9)(1,5)
b. (1,2)(1,2,3)(1,2)

The Attempt at a Solution



a. (1, 2, 3) ( 4, 5, 6, 7, 8, 9)
b. (1, 2, 3)


These are the answers I got directly through the product. Would anybody be willing to check those answers? Thank you!
 
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Sorry. I looked at it again. Here's my second attempt at a solution:

a. (1,4,5,6,7,8,9,2,3)
b. (1,3,2)
 
It looks fine to me, if you are applying the permutations from right to left.
 

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