SOLVE: Isomorphism Problem for Z252 X Z294 and Z42 X Z1764

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In summary, the conversation discusses whether or not Z252 X Z294 is isomorphic to Z42 X Z1764. The conversation includes a suggestion to write the groups in a more canonical form using prime decomposition and a formula, and ultimately concludes that the two groups are indeed isomorphic.
  • #1
phyalan
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Homework Statement


is Z252 X Z294 isomorphic to Z42 X Z1764? Explain.


Homework Equations





The Attempt at a Solution


I checked that the highest order of the element in both group are 1764, but don't really know how to justify if there is an isomorphism...Can anyone give me some hints?
 
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  • #2
Hi phyalan! :smile:

Let's first write your thingies in a more canonical form. For this I want you to take the prime decomposition of 252, 294, 42, 1764 and apply the following formula:

[tex]\mathbb{Z}_{ab}\cong \mathbb{Z}_a\times \mathbb{Z}_b[/tex]

if gcd(a,b)=1.

For example, you could write

[tex]\mathbb{Z}_{84}\cong \mathbb{Z}_4\times\mathbb{Z}_3\times \mathbb{Z}_7[/tex].

Try to do this with your groups...
 
  • #3
So is
[tex]\mathbb{Z}_a\times \mathbb{Z}_b\cong \mathbb{Z}_b\times \mathbb{Z}_a[/tex] ?

if that's ok, then i m done.
Anyway, thank you micromass =)
 
  • #4
Yes, that's true! :smile:
 

Related to SOLVE: Isomorphism Problem for Z252 X Z294 and Z42 X Z1764

What is the "Isomorphism Problem" for Z252 X Z294 and Z42 X Z1764?

The Isomorphism Problem is a mathematical problem that seeks to determine whether two algebraic structures, in this case Z252 X Z294 and Z42 X Z1764, are isomorphic or not. Isomorphic structures have the same underlying structure and can be mapped onto each other in a way that preserves their algebraic operations.

Why is solving the Isomorphism Problem for Z252 X Z294 and Z42 X Z1764 important?

Solving the Isomorphism Problem for these two structures is important because it can help us better understand the relationship between them and potentially reveal new insights and connections in mathematics. It also has practical applications in fields such as computer science and cryptography.

What is known about the solutions to the Isomorphism Problem for Z252 X Z294 and Z42 X Z1764?

Currently, there is no known solution to the Isomorphism Problem for these two structures. It is a difficult problem and is still an active area of research in mathematics. Some progress has been made in special cases, but a general solution is yet to be found.

What approaches have been used to try and solve the Isomorphism Problem for Z252 X Z294 and Z42 X Z1764?

Various approaches have been used to tackle the Isomorphism Problem for these two structures, including group-theoretic methods, algebraic geometry, and computational algorithms. Some researchers have also used techniques from other fields such as topology and combinatorics.

What impact could solving the Isomorphism Problem for Z252 X Z294 and Z42 X Z1764 have on mathematics and other fields?

If the Isomorphism Problem is solved for these two structures, it could have significant implications for various areas of mathematics, such as group theory, algebraic geometry, and number theory. It could also have practical applications in fields like cryptography, coding theory, and computer science.

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