Representing products as disjoint cycles

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In summary, The products are represented as follows:a) (163742)(5164)b) (12345)(67)(1357)(163)c) (14)(123)(45)(14) The order of each product is:a) 6b) 12c) 6
  • #1
duki
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Homework Statement



Represent the following products as products of disjoint cycle. find the order of each product.

Homework Equations



a) (1234)(567)(261)(47)
b) (12345)(67)(1357)(163)
c) (14)(123)(45)(14)

The Attempt at a Solution



I've only attempted a) because I'm not sure if I'm doing it right. Here's what I got:

a) (163742)(5164)

because,
1->2, 2->6
2->3 so no need to include it
3->4, 4->7
4->1, 1->2
5->6, 6->1
6->7, 7->4
Is this even close?
 
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  • #2


(1234) on the set should look like
|1-2-3-4|
|2-1-3-4| position 1->2
|2-3-1-4| position 2->3
|2-3-4-1| position 3->4

so (1234) is the permutation
|1-2-3-4|
|2-3-4-1|
 

1. What is the purpose of representing products as disjoint cycles?

The purpose of representing products as disjoint cycles is to simplify complex mathematical expressions and make them easier to work with. It also allows us to see the underlying structure of the product and identify any patterns or relationships between the elements.

2. How do you represent a product as disjoint cycles?

To represent a product as disjoint cycles, we first write out the product in its factored form. Then, we group the factors into cycles, making sure that each element appears in only one cycle. Finally, we write the cycles in a specific order to show the product in its disjoint cycle form.

3. Can products with different numbers of elements be represented as disjoint cycles?

Yes, products with different numbers of elements can be represented as disjoint cycles. The number of cycles and their lengths may vary, but the important thing is that each element appears in only one cycle.

4. What is the significance of representing products as disjoint cycles in group theory?

In group theory, representing products as disjoint cycles allows us to study the properties and relationships of groups more easily. Disjoint cycles help us to understand the structure and behavior of group elements, and can also be used to prove certain theorems and solve problems.

5. Are there any limitations to representing products as disjoint cycles?

One limitation of representing products as disjoint cycles is that it can only be done with commutative operations, such as multiplication. Also, not all products can be represented as disjoint cycles, as some may have overlapping elements. In addition, the order of the cycles does not always matter, so there may be multiple ways to represent the same product as disjoint cycles.

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