Rank of linear transformation $T(P)=QP$ where $Q$ has rank $2$












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Suppose $ Q in M_{3}(mathbb R)$ is the matrix of rank $2$. Let $T:M_{3}(mathbb R)to M_{3}(mathbb R)$ be the linear transformation defined by $T(P)=QP$. Then find rank of linear transformation.




Rank of $Q$ is $2$ does it mean that $Q$ have $2$ pivot when reduce by echelon from or it means that it has $2$ distinct elements which form part of basis ?



As $dim(mathrm{range}(T))+dim(mathrm{null}(T))=9$ and since $PQ$ is the product it can have rank atmost $2$ does it mean rank of linear transformation is less than or equal to $2$ ?










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  • 1




    $begingroup$
    See this question.
    $endgroup$
    – Dietrich Burde
    Dec 26 '18 at 16:04
















0












$begingroup$



Suppose $ Q in M_{3}(mathbb R)$ is the matrix of rank $2$. Let $T:M_{3}(mathbb R)to M_{3}(mathbb R)$ be the linear transformation defined by $T(P)=QP$. Then find rank of linear transformation.




Rank of $Q$ is $2$ does it mean that $Q$ have $2$ pivot when reduce by echelon from or it means that it has $2$ distinct elements which form part of basis ?



As $dim(mathrm{range}(T))+dim(mathrm{null}(T))=9$ and since $PQ$ is the product it can have rank atmost $2$ does it mean rank of linear transformation is less than or equal to $2$ ?










share|cite|improve this question











$endgroup$








  • 1




    $begingroup$
    See this question.
    $endgroup$
    – Dietrich Burde
    Dec 26 '18 at 16:04














0












0








0


0



$begingroup$



Suppose $ Q in M_{3}(mathbb R)$ is the matrix of rank $2$. Let $T:M_{3}(mathbb R)to M_{3}(mathbb R)$ be the linear transformation defined by $T(P)=QP$. Then find rank of linear transformation.




Rank of $Q$ is $2$ does it mean that $Q$ have $2$ pivot when reduce by echelon from or it means that it has $2$ distinct elements which form part of basis ?



As $dim(mathrm{range}(T))+dim(mathrm{null}(T))=9$ and since $PQ$ is the product it can have rank atmost $2$ does it mean rank of linear transformation is less than or equal to $2$ ?










share|cite|improve this question











$endgroup$





Suppose $ Q in M_{3}(mathbb R)$ is the matrix of rank $2$. Let $T:M_{3}(mathbb R)to M_{3}(mathbb R)$ be the linear transformation defined by $T(P)=QP$. Then find rank of linear transformation.




Rank of $Q$ is $2$ does it mean that $Q$ have $2$ pivot when reduce by echelon from or it means that it has $2$ distinct elements which form part of basis ?



As $dim(mathrm{range}(T))+dim(mathrm{null}(T))=9$ and since $PQ$ is the product it can have rank atmost $2$ does it mean rank of linear transformation is less than or equal to $2$ ?







linear-algebra matrices linear-transformations






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share|cite|improve this question













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share|cite|improve this question








edited Dec 26 '18 at 18:01







sejy

















asked Dec 26 '18 at 15:35









sejysejy

1589




1589








  • 1




    $begingroup$
    See this question.
    $endgroup$
    – Dietrich Burde
    Dec 26 '18 at 16:04














  • 1




    $begingroup$
    See this question.
    $endgroup$
    – Dietrich Burde
    Dec 26 '18 at 16:04








1




1




$begingroup$
See this question.
$endgroup$
– Dietrich Burde
Dec 26 '18 at 16:04




$begingroup$
See this question.
$endgroup$
– Dietrich Burde
Dec 26 '18 at 16:04










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