@article{oai:oist.repo.nii.ac.jp:00002624, author = {Hernandez, Felipe and Raiță, Bogdan and Spector, Daniel}, journal = {Mathematische Annalen}, month = {Mar}, note = {Let d >= 2. In this paper we give a simple proof of the endpoint Besov-Lorentz estimate parallel to I alpha F parallel to B-d/(d-alpha),1(0,1) (R-d;R-k) <= C parallel to F parallel to(L)1(R-d;R-k) for all F is an element of L-1 (R-d ; R-k) which satisfy a first order cocancelling differential constraint, where alpha is an element of (0, d) and I-alpha is a Riesz potential. We show how this implies endpoint Besov-Lorentz estimates for Hodge systems with L-1 data via fractional integration for exterior derivatives.}, title = {Endpoint L-1 estimates for Hodge systems}, year = {2022} }