TY  - RPRT
TI  - A note on multigrid preconditioning for fractional PDE-constrained optimization problems
AU  - Antil, Harbir
AU  - Drăgănescu, Andrei
AU  - Green, Kiefer (ORCID:0000000194783330)
PY  - 2021
DO  - 10.1016/j.rinam.2020.100133
UR  - https://www.osti.gov/biblio/1731016
ID  - 1731016
ER  -