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 2025 Dec. 5];. Available from: https://www.global-sci.com/index.php/JCM/article/view/23267