Let X and Y be two matrices with 4 rows and 5 columns. The rank of X and Y is 3. May I ask how to get the lower bound and upper bound of the rank of X_T*Y? Besides, how to proved it?
Let X and Y be two matrices with 4 rows and 5 columns. The rank of X and Y is 3. May I ask how to get the lower bound and upper bound of the rank of X_T*Y? Besides, how to proved it?
Let X and Y be two matrices with 4 rows and 5 columns. The rank of X and Y is 3. May I ask how to get the lower bound and upper bound of the rank of X_T*Y? Besides, how to proved it?
Let X and Y be two matrices with 4 rows and 5 columns. The rank of X and Y is 3. May I ask how to get the lower bound and upper bound of the rank of X_T*Y? Besides, how to proved it?
I am so confused about it. Could please tell me how to solve it? Thank you so much!
Branch of mathematics concerned with mathematical structures that are closed under operations like addition and scalar multiplication. It is the study of linear combinations, vector spaces, lines and planes, and some mappings that are used to perform linear transformations. Linear algebra also includes vectors, matrices, and linear functions. It has many applications from mathematical physics to modern algebra and coding theory.
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