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  2. A rank-one matrix is the product of two vectors. Ask Question Asked 8 years, 11 months ago. Modified 1 ...

  3. functional analysis - Understand rank-one operators in Hilbert...

    math.stackexchange.com/questions/4050656/understand-rank-one-operators-in...

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  4. I doubt there is an analytic expression for all but the smallest matrix dimensions. However, there is an inexpensive way to compute the eigenvalues of rank-one update. The following comes from Demmel's Applied Numerical Linear Algebra subsection 5.3.3.

  5. What is the relationship between onto/ one to one and rank?

    math.stackexchange.com/questions/2559189/what-is-the-relationship-between-onto...

    What is the rank if A is one to one? what about not one to one? I understand what rank is but i dont understand how you could find the rank just from knowing if a matrix is onto/one to one. And i dont get how it changes if its not onto/one to one

  6. partial differential equations - Rank-one convexity and lower ...

    math.stackexchange.com/questions/4635059/rank-one-convexity-and-lower...

    Quasiconvexity implies rank-one convexity. This was also known to Morrey and is not hard to check. Sverak showed in '92 that there exist functions which are rank-one convex but not quasiconvex. In particular, this means rank-one convexity does not imply lower semicontinuity. There is a huge literature on this topic; here are some themes covered:

  7. linear algebra - Inverting identity plus a rank one matrix ...

    math.stackexchange.com/questions/4185261/inverting-identity-plus-a-rank-one-matrix

    Inverting identity plus a rank one matrix. Ask Question Asked 3 years, 4 months ago.

  8. linear algebra - rank one update - Mathematics Stack Exchange

    math.stackexchange.com/questions/143430/rank-one-update

    rank one update. Ask Question Asked 12 years, 6 months ago. Modified 12 years, 2 months ago. Viewed 4k ...

  9. Rank of sum of rank-$1$ matrices - Mathematics Stack Exchange

    math.stackexchange.com/questions/707209/rank-of-sum-of-rank-1-matrices

    If you sum a certain number of rank-$1$ matrices: $$X = u_1 u_1^T + u_2 u_2^T + \\cdots + u_N u_N^T$$ Is the result guaranteed to be rank-$N$ assuming the individual ...

  10. Determinant of rank-one perturbations of (invertible) matrices

    math.stackexchange.com/questions/219731/determinant-of-rank-one-perturbations...

    Determinant of a rank $1$ update of a scalar matrix, or characteristic polynomial of a rank $1$ matrix 5 When is the matrix $\text{diag}(\mathbf{x}) + \mathbf{1}$ invertible?

  11. Why is this projection of rank 1? - Mathematics Stack Exchange

    math.stackexchange.com/questions/4394002/why-is-this-projection-of-rank-1

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