A fictitious-play finite-difference method for linearly solvable mean field games Daisuke Inoue, Yuji Ito, Takahito Kashiwabara, Norikazu Saito and Hiroaki Yoshida ESAIM: M2AN, 57 4 (2023) 1863-1892 Published online: 03 July 2023 DOI: 10.1051/m2an/2023026