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Kunze Linear Algebra
· Problem 6.6.4
Elementary Canonical Forms
Mathematics — Methods · sum-of-projections
Problem
If
E
1
E_1
E
1
and
E
2
E_2
E
2
are projections onto independent subspaces, then
E
1
+
E
2
E_1 + E_2
E
1
+
E
2
is a projection. True or false?
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