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New posts in projection-matrices
Must a "projector" on a normed space be bounded?
functional-analysis
banach-spaces
normed-spaces
projection-matrices
unbounded-operators
Uniqueness of trace as linearization of the rank
linear-algebra
matrices
matrix-rank
trace
projection-matrices
Product of a vector and its transpose (Projections)
linear-algebra
vectors
transpose
projection-matrices
Writing projection in terms of projection matrix
linear-algebra
orthogonality
projection-matrices
projection
Diagonalization of a projection
linear-algebra
diagonalization
projection-matrices
Why is a projection matrix symmetric?
linear-algebra
matrices
intuition
projection-matrices
Show that $P_i$ and $\sum_i P_i$ being idempotent implies $P_i P_j=\delta_{ij}$
linear-algebra
matrices
operator-theory
projection-matrices
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