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Results tagged with algebraic-combinatorics
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user 21137
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answers
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Dimension of the sum of images of transpose
$\newcommand{\rank}{\operatorname{rank}}\newcommand{\im}{\operatorname{im}}$
Given $A,B\in M_{n\times n}(k)$, define $\rank(A,B):=\dim(\im A+\im B)$. I'm looking for results regarding relationships be …
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