Show that Q and Dg g are not isomorphic.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Could you show me how to do this in detail? Could you state any theorems and definition you used for this problem? (Q is quaternion group)

Show that Q and Dg are not isomorphic.
Transcribed Image Text:Show that Q and Dg are not isomorphic.
Expert Solution
Step 1

First of all we have to show that how to say any two group are isomorphism.

Let f:GH be an isomorphism.

If xG has finite order element n

then xn=1 and fxn=fxn=1

Moreover if m<n, then xm1

fxk1 because f is injective that is one one

Hence, fx has order n

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