Problem 1. We consider the set G of 3 x 3 matrices with coefficients in Z2 defined as follows: I ab O ī c |a, b, ce Z. G:= (a) Show that G is a subgroup of GL3(Z2). What is its order? (b) Show that the following two elements A, B E G do not commute: A:= 0 ī O B:= 0 ī ī Is G a cyclic group? (c) Show that G is generated by A and B.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Problem 1. We consider the set G of 3 x 3 matrices with coefficients in Z2 defined as follows:
I ab
O ī c |a, b, ce Z.
G:=
(a) Show that G is a subgroup of GL3(Z2). What is its order?
(b) Show that the following two elements A, B E G do not commute:
A:= 0 ī O
B:= 0 ī ī
Is G a cyclic group?
(c) Show that G is generated by A and B.
Transcribed Image Text:Problem 1. We consider the set G of 3 x 3 matrices with coefficients in Z2 defined as follows: I ab O ī c |a, b, ce Z. G:= (a) Show that G is a subgroup of GL3(Z2). What is its order? (b) Show that the following two elements A, B E G do not commute: A:= 0 ī O B:= 0 ī ī Is G a cyclic group? (c) Show that G is generated by A and B.
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