complete the following questions: What isometry is (ab)^n a(x,y)? What isometry is (ba)^n b(x,y)? What is the Cayley graph of the infinite dihedral group? (Drawing hint: choose a random point (x,y) and see where elements send it ) What is a fundamental domain? Describe the subgroup of the infinite dihedral group given by the definition below. What isometries do the generators correspond to? Can you draw the Cayley graph, figure out a fundamental domain, and use it to determine the index of the subgroup in the larger group?     < a,bab | a2=b2 =e > ⊂D ∞

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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complete the following questions:

  1. What isometry is (ab)^n a(x,y)?

  2. What isometry is (ba)^n b(x,y)?

  3. What is the Cayley graph of the infinite dihedral group? (Drawing hint: choose a random point (x,y) and see where elements send it ) What is a fundamental domain?

Describe the subgroup of the infinite dihedral group given by the definition below. What isometries do the generators correspond to? Can you draw the Cayley graph, figure out a fundamental domain, and use it to determine the index of the subgroup in the larger group?    

< a,bab | a2=b2 =e > ⊂D ∞

 

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