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2014 HMIC
5
2014 HMIC #5
2014 HMIC #5
Source:
December 26, 2016
Problem Statement
Let
n
n
n
be a positive integer, and let
A
A
A
and
B
B
B
be
n
×
n
n\times n
n
×
n
matrices with complex entries such that
A
2
=
B
2
A^2=B^2
A
2
=
B
2
. Show that there exists an
n
×
n
n\times n
n
×
n
invertible matrix
S
S
S
with complex entries that satisfies
S
(
A
B
−
B
A
)
=
(
B
A
−
A
B
)
S
S(AB-BA)=(BA-AB)S
S
(
A
B
−
B
A
)
=
(
B
A
−
A
B
)
S
.
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