Computing a Fixed Point of Contraction Maps in Polynomial Queries
Xi Chen, Yuhao Li, Mihalis Yannakakis·2024-03-29·via cs.DS updates on arXiv.org
We give an algorithm for finding an $ε$-fixed point of a contraction map $f:[0,1]^k\mapsto[0,1]^k$ under the $\ell_\infty$-norm with query complexity $O (k\log (1/ε) )$.