TY - JOUR AU - Tropp, Joel A. TI - Norms of random submatrices and sparse approximation JO - Comptes Rendus. Mathématique PY - 2008 SP - 1271 EP - 1274 VL - 346 IS - 23-24 PB - Elsevier UR - http://www.numdam.org/articles/10.1016/j.crma.2008.10.008/ DO - 10.1016/j.crma.2008.10.008 LA - en ID - CRMATH_2008__346_23-24_1271_0 ER -