Uniform Sufficient Condition For the Recovery of Non-Strictly Block $k$-Sparse Signals by Weighted $ℓ_{2,p} $− $\alpha ℓ_{2,q}$ Nonconvex Minimization Method. JCM [Internet]. 2025 Nov. 19 [cited 2026 Mar. 14];. Available from: https://gsp.tricubic.dev/JCM/article/view/23267