Suppose V is a 4-dimensional vector space, and that T is a linear operator on V with minimal polynomial x?. What can we say about the dimension of ker T?

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Chapter2: Second-order Linear Odes
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Suppose
V
is a 4-dimensional vector space, and that
T
is a linear operator on
V
with minimal polynomial
x².
What can we say about the dimension of
ker T?
Transcribed Image Text:Suppose V is a 4-dimensional vector space, and that T is a linear operator on V with minimal polynomial x². What can we say about the dimension of ker T?
We must have
dim ker T =
2.
O We may have
dim ker T = 2
or
dim ker T
3.
O In general,
2 < dim ker T < 4
may hold.
Transcribed Image Text:We must have dim ker T = 2. O We may have dim ker T = 2 or dim ker T 3. O In general, 2 < dim ker T < 4 may hold.
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