Abstract
Given vertices s, t of a planar digraph G, does there exist a directed circuit of G containing both s and t? We give a polynomial algorithm for this and for a number of related problems, including one about disjoint directed circuits of prescribed homotopy in a digraph drawn on a torus.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 261-273 |
| Number of pages | 13 |
| Journal | Combinatorica |
| Volume | 11 |
| Issue number | 3 |
| DOIs | |
| State | Published - Sep 1991 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Discrete Mathematics and Combinatorics
- Computational Mathematics
Keywords
- AMS subject classification (1980): 05C70, 05C10, 05C20, 05C38