Helmut Seidl. **Fast and Simple Nested Fixpoints**. , volume 59 of *Forschungsbericht*, pages 303-308, 1996. Inf. Process. Lett..

We give an alternative proof of the result of Long et al. (1994) that nested fixpoint expressions e of alternation depth d > 1 can be evaluated over a complete lattice of height h in time O(d · (h · ¦e¦/(d − 1))upper left cornerd/2upper right corner+1). The advantage of our proof is that it is both extremely short and extremely simple. We give an alternative proof of the result of Long et al. in [12] that nested fixpoint expressions of alternation depth can be evaluated over a complete lattice of height in time . The advantage of our proof is that it is both extremely short and extremely simple.

Reference: Bibtex