2 problems

Sparse approximation conjecture for John decompositions
Let $u_1,\ldots,u_n\in S^{d-1}$ be unit vectors for which there exist positive numbers $\alpha_1,\ldots,\alpha_n$ satisfying … where $I_d$ is the identity operator on…
openFrom papersconvex-geometry john-position sparse-approximation
0 responses
6
Restricted-isometry conjecture for truncated sparse approximation properties
Restricted-isometry conjecture. If $A$ has restricted 2-isometry property of order $tk$ with
openFrom paperscompressed-sensing restricted-isometry sparse-approximation
0 responses
5

Sparse approximation conjecture for John decompositions