Olof B. Widlund, born 1938, is a Swedish-American mathematician. He is well known for his leading role in and fundamental contributions to domain decomposition methods. He received his Ph.D. at Uppsala University in 1966 and is professor of Computer Science at the Courant Institute of New York University.
- Andrea Toselli and Olof Widlund, Domain Decomposition Methods - Algorithms and Theory, Springer Series in Computational Mathematics, Vol. 34, 2004