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2Â¥: Originally posted by jiajiasnoopy at 2019-10-20 19:37:50
Consider the linear systems of {Ax=0} and{A^HAx=0}  and you can show that these systems have the same solutions. This tells that {r(A)=r(A^HA)}.

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Rason½­ºÓ(Edstrayer´ú·¢): ½ð±Ò+10 2019-10-26 06:31:38
Consider the linear systems of and  and you can show that these systems have the same solutions. This tells that .
2Â¥2019-10-20 19:37:50
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