Overparameterized models for vector fields
K. Rotker, D.B. Bashat, A.M. Bronstein, SIAM Journal on Imaging Sciences 13 (2020) 1386–1414.

Sparsity and nullity: Paradigms for analysis dictionary learning
X. Bian, H. Krim, A.M. Bronstein, L. Dai, SIAM Journal on Imaging Sciences 9 (2016) 1107–1126.